<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">IP público no server?!?!?! My Good, alguém realmente faz uma sandice dessas???</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">
<br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Acho que vou desencarnar e não terei lido tudo ... rsrsrsrsrsr</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">
<br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">No mínimo, mas mínimo mesmo: Internet &lt;&gt; Router &lt;&gt; Firewall &lt;&gt; [NAT] &lt;&gt; Asterisk</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">
<br></div></div><div class="gmail_extra"><br clear="all"><div><div dir="ltr"><br>[...]&#39;s<br><br>Marcio<div><br></div><div><div style="font-family:arial;font-size:small">========================================</div><div style="font-family:arial;font-size:small">
########### Campanha Ajude o Marcio! ###########</div><div style="font-family:arial;font-size:small"><a href="http://sosmarcio.blogspot.com.br/" style="color:rgb(17,85,204)" target="_blank">http://sosmarcio.blogspot.com.br/</a></div>
<div style="font-family:arial;font-size:small"><a href="http://www.vakinha.com.br/VaquinhaP.aspx?e=195793" style="color:rgb(17,85,204)" target="_blank">http://www.vakinha.com.br/VaquinhaP.aspx?e=195793</a><br></div><div style="font-family:arial;font-size:small">
========================================</div></div></div></div>
<br><br><div class="gmail_quote">Em 31 de julho de 2013 12:37, Danilo Almeida <span dir="ltr">&lt;<a href="mailto:daniloricalmeida@gmail.com" target="_blank">daniloricalmeida@gmail.com</a>&gt;</span> escreveu:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">surgiu uma dúvida referente a esses ataques, como sou inexperiente nessa parte de redes, não sei como funciona essas tentativas...<div><br></div><div>como que eles descobrem o servidor na rede?</div><div>como conseguem fazer tantas tentativas de ataque simultaneamente?</div>

<div><br></div><div>se alguém puder me esclarecer um pouco sobre esse assunto eu agradeço... até mesmo porque, precisamos conhecer as técnicas para nos proteger.</div><div><br></div><div>Obrigado</div></div><div class="gmail_extra">

<br><br><div class="gmail_quote">Em 31 de julho de 2013 13:33, Guilherme Rezende <span dir="ltr">&lt;<a href="mailto:asterisk@guilherme.eti.br" target="_blank">asterisk@guilherme.eti.br</a>&gt;</span> escreveu:<div><div class="h5">
<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
        Gente, eu não uso Fail2ban.   Como esses ataques são oriundos de
    redes externas ao BR, fiz o bloqueio de todas as redes cujam origem
    não são BR. E resolveu!!  Não tenho problemas c/ ataques mais...  Os
    logs do meu Asterisk nunca mais exibiram tentativa de logar via sip
    nos meus servidores.  Veja o código abaixo que é bem simples, libero
    apenas as redes que estão listadas, depois fecho tudo.  Se não tiver
    necessidade de ter alguém externo que logue no seu servidor, o
    código abaixo resolve.  Desative todas suas regras de iptables,
    desative todos os firewall´s e rode o script abaixo.<br>
    <br>
    #!/bin/bash<br>
    ipt=/sbin/iptables<br>
    $ipt -F<br>
    $ipt -A INPUT -i eth2 -s <a href="http://172.16.5.0/24" target="_blank">172.16.5.0/24</a> -p udp -j ACCEPT<br>
    $ipt -A INPUT -i eth2 -s <a href="http://186.0.0.0/8" target="_blank">186.0.0.0/8</a> -p udp -j ACCEPT<br>
    $ipt -A INPUT -i eth2 -s <a href="http://187.0.0.0/8" target="_blank">187.0.0.0/8</a> -p udp -j ACCEPT<br>
    $ipt -A INPUT -i eth2 -s <a href="http://177.0.0.0/8" target="_blank">177.0.0.0/8</a> -p udp -j ACCEPT<br>
    $ipt -A INPUT -i eth2 -s <a href="http://179.0.0.0/8" target="_blank">179.0.0.0/8</a> -p udp -j ACCEPT<br>
    $ipt -A INPUT -i eth2 -s <a href="http://189.0.0.0/8" target="_blank">189.0.0.0/8</a> -p udp -j ACCEPT<br>
    $ipt -A INPUT -i eth2 -s <a href="tel:198.50.96.130" value="+551985096130" target="_blank">198.50.96.130</a> -p udp -j ACCEPT<br>
    $ipt -A INPUT -i eth2 -s <a href="http://200.0.0.0/8" target="_blank">200.0.0.0/8</a> -p udp -j ACCEPT<br>
    $ipt -A INPUT -i eth2 -s <a href="http://201.0.0.0/8" target="_blank">201.0.0.0/8</a> -p udp -j ACCEPT<br>
    $ipt -A INPUT -i eth2 -p udp -j DROP<br>
    <br>
    <br>
    <br>
    Em 31/07/2013 13:12, Danilo Almeida escreveu:
    <div><div><blockquote type="cite">
      <div dir="ltr">recebi várias tentativas neste final de semana,
        porém, o fail2ban bloqueiou.
        <div><br>
        </div>
        <div>DROP       all  --  <a href="tel:173.242.120.42" value="+17324212042" target="_blank">173.242.120.42</a>       anywhere<br>
          <table border="0" cellpadding="4" cellspacing="0" height="300" width="297">
            <tbody>
              <tr>
                <td align="right">Nome do Host:</td>
                <td align="left" width="198"><a href="tel:173.242.120.42" value="+17324212042" target="_blank">173.242.120.42</a></td>
              </tr>
              <tr>
                <td align="right">IP Address:</td>
                <td align="left"><a href="tel:173.242.120.42" value="+17324212042" target="_blank">173.242.120.42</a></td>
              </tr>
              <tr>
                <td align="right">País:</td>
                <td align="left"><a href="http://en.wikipedia.org/wiki/united%20states" target="_blank"> United States</a> <img alt="united states" align="absmiddle"></td>
              </tr>
              <tr>
                <td align="right">Código do país:</td>
                <td align="left">US (USA)</td>
              </tr>
              <tr>
                <td align="right">Região:</td>
                <td align="left"><a href="http://en.wikipedia.org/wiki/Pennsylvania" target="_blank">Pennsylvania</a></td>
              </tr>
              <tr>
                <td align="right">Cidade:</td>
                <td align="left">Clarks Summit</td>
              </tr>
              <tr>
                <td align="right">Código postal:</td>
                <td align="left">18411</td>
              </tr>
              <tr>
                <td align="right">Código tel.:</td>
                <td align="left"><a href="http://en.wikipedia.org/wiki/Area_code#United_States" target="_blank">+1</a></td>
              </tr>
              <tr>
                <td align="right">Longitude:</td>
                <td align="left">-75.728</td>
              </tr>
              <tr>
                <td align="right">Latitude:</td>
                <td align="left">41.4486<br>
                </td>
              </tr>
            </tbody>
          </table>
        </div>
        <div class="gmail_extra"><br>
        </div>
        <div class="gmail_extra">
          <div class="gmail_extra">[2013-07-27 15:09:35] NOTICE[1775]
            chan_sip.c: Registration from &#39;&quot;shuang&quot;
            <a>&lt;sip:shuang@IP-Servidor&gt;</a>&#39; failed for &#39;<a href="http://173.242.120.42:5061" target="_blank">173.242.120.42:5061</a>&#39;
            - Wrong password</div>
          <div><br>
          </div>
          <div>
            <div>[2013-07-28 15:09:43] NOTICE[1775] chan_sip.c:
              Registration from &#39;&quot;chu&quot; <a>&lt;sip:chu@IP-servidor&gt;</a>&#39;
              failed for &#39;<a href="http://173.242.120.42:5081" target="_blank">173.242.120.42:5081</a>&#39;
              - Wrong password</div>
          </div>
          <div><br>
          </div>
          <div>[2013-07-29 15:09:45] NOTICE[1775] chan_sip.c:
            Registration from &#39;&quot;chu&quot; <a>&lt;sip:chu@IP-servidor&gt;</a>&#39; failed
            for &#39;<a href="http://173.242.120.42:5081" target="_blank">173.242.120.42:5081</a>&#39;
            - Wrong password<br>
          </div>
          <div><br>
          </div>
          <div>[2013-07-30 15:09:47] NOTICE[1775] chan_sip.c:
            Registration from &#39;&quot;chu&quot; <a>&lt;sip:chu@IP-servido&gt;</a>&#39; failed
            for &#39;<a href="http://173.242.120.42:5081" target="_blank">173.242.120.42:5081</a>&#39;
            - Wrong password</div>
          <div class="gmail_extra"><br>
          </div>
          se observarem, eu bloqueio as tentativas por 24 horas, sendo
          assim, o invasor permanecia tentando no dia seguinte, agora
          dei um BAN permanente nele... rsrs</div>
        <div class="gmail_extra">
          <br>
        </div>
        <div class="gmail_extra"><br>
          <div class="gmail_quote">Em 31 de julho de 2013 12:50, Thiago
            Anselmo <span dir="ltr">&lt;<a href="mailto:thiagoo.anselmoo@gmail.com" target="_blank">thiagoo.anselmoo@gmail.com</a>&gt;</span>
            escreveu:<br>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
              <div dir="ltr">Amigo,
                <div><br>
                </div>
                <div>Já teve outro amigo aqui da lista que teve o mesmo
                  problema, e o mesmo o fail2ban não pegou, pois eles
                  não atacam penas 5060, existe outras fomras!! <br>
                  <br>
                  Como está ligado seu PABX? Está atrás de NAT ou
                  diretamente um IP público ligado a ele?</div>
                <div><br>
                </div>
                <div>me diga que podemos realizar formas de fazer com o
                  IPTABLES!! E fica bom!!!</div>
                <div>Bloqueia tudo e libera apenas para quem você
                  deseja!</div>
              </div>
              <div class="gmail_extra"><br>
                <br>
                <div class="gmail_quote">
                  Em 31 de julho de 2013 12:40, Marcio - Google <span dir="ltr">&lt;<a href="mailto:marciorp@gmail.com" target="_blank">marciorp@gmail.com</a>&gt;</span>
                  escreveu:
                  <div>
                    <div><br>
                      <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
                        <div dir="ltr">
                          <div style="font-family:arial,helvetica,sans-serif">Exatamente
                            o que o Hudson disse ...</div>
                          <div style="font-family:arial,helvetica,sans-serif">Falha
                            no dimensionamento e configuração.</div>
                        </div>
                        <div class="gmail_extra"><br clear="all">
                          <div>
                            <div dir="ltr"><br>
                              [...]&#39;s<br>
                              <br>
                              Marcio
                              <div><br>
                              </div>
                              <div>
                                <div style="font-family:arial;font-size:small">========================================</div>
                                <div style="font-family:arial;font-size:small">
                                  ########### Campanha Ajude o Marcio!
                                  ###########</div>
                                <div style="font-family:arial;font-size:small"><a href="http://sosmarcio.blogspot.com.br/" style="color:rgb(17,85,204)" target="_blank">http://sosmarcio.blogspot.com.br/</a></div>
                                <div style="font-family:arial;font-size:small"><a href="http://www.vakinha.com.br/VaquinhaP.aspx?e=195793" style="color:rgb(17,85,204)" target="_blank">http://www.vakinha.com.br/VaquinhaP.aspx?e=195793</a><br>


                                </div>
                                <div style="font-family:arial;font-size:small">
========================================</div>
                              </div>
                            </div>
                          </div>
                          <br>
                          <br>
                          <div class="gmail_quote">Em 31 de julho de
                            2013 11:06, Hudson Cardoso <span dir="ltr">&lt;<a href="mailto:hudsoncardoso@hotmail.com" target="_blank">hudsoncardoso@hotmail.com</a>&gt;</span>
                            escreveu:
                            <div>
                              <div>
                                <br>
                                <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
                                  <div>
                                    <div dir="ltr"><font style="font-size:12pt" face="Arial" size="3">   O
                                        Fail2ban não pegou, porque ele
                                        ja conseguiu passar, isso
                                        significa que o teu firewall não
                                        está corretamente</font>
                                      <div><font style="font-size:12pt" face="Arial" size="3">dimensionado,
                                          e/ou configurado.</font></div>
                                      <div><font style="font-size:12pt" face="Arial" size="3">  No meu
                                          se fizer 3 tentativas,
                                          bloqueia por 15 minutos, e
                                          quando um guest pede acesso ao
                                          diaplan, simplesmente </font></div>
                                      <div><font style="font-size:12pt" face="Arial" size="3">dou
                                          HangUp em todos os Guest.<br>
                                        </font><br>
                                        <br>
                                        <pre style="line-height:17px;color:rgb(42,42,42);white-space:normal">Hudson 
<a href="tel:%28048%29%208413-7000" value="+554884137000" target="_blank">(048) 8413-7000</a>
Para quem nao cre, nenhuma prova converte,Para aquele que cre, nenhuma prova precisa. </pre>
                                        <br>
                                        <br>
                                        <div>&gt; From: <a href="mailto:caiopato@gmail.com" target="_blank">caiopato@gmail.com</a><br>
                                          &gt; Date: Wed, 31 Jul 2013
                                          11:47:25 -0300<br>
                                          &gt; To: <a href="mailto:asteriskbrasil@listas.asteriskbrasil.org" target="_blank">asteriskbrasil@listas.asteriskbrasil.org</a><br>
                                          &gt; Subject: [AsteriskBrasil]
                                          Ataque massivo a partir do IP
                                          <a href="tel:67.207.137.49" value="+556720713749" target="_blank">67.207.137.49</a>
                                          <div>
                                            <div><br>
                                              &gt; <br>
                                              &gt; Eu estava sendo
                                              vítima de uma tentativa de
                                              ataque a partir do IP<br>
                                              &gt; <a href="tel:67.207.137.49" value="+556720713749" target="_blank">67.207.137.49</a>
                                              (Rackspace Cloud Servers),<br>
                                              &gt; Foram 3548 tentativas
                                              em 10 minutos até ser
                                              bloqueado manualmente no
                                              iptables.<br>
                                              &gt; Não investiguei a
                                              fundo o método do ataque,
                                              mas basicamente ele estava<br>
                                              &gt; tentando cavar uma
                                              falha no dialplan.<br>
                                              &gt; <br>
                                              &gt; No console apareceu:<br>
                                              &gt; Jul 31 09:53:58
                                              WARNING[18816]:
                                              chan_sip.c:6903
                                              get_destination: Huh?<br>
                                              &gt; Not a SIP header
                                              (tel:1900442075005000)?<br>
                                              &gt; ...<br>
                                              &gt; Jul 31 10:04:37
                                              WARNING[18816]:
                                              chan_sip.c:6903
                                              get_destination: Huh?<br>
                                              &gt; Not a SIP header
                                              (tel:2440900442075005000)?<br>
                                              &gt; <br>
                                              &gt; Note que o atacando
                                              manteve o sufixo e
                                              alterava só o prefixo (19,
                                              29,<br>
                                              &gt; 39, .... até chegar
                                              no 24409 quando eu
                                              bloqueei via iptables.<br>
                                              &gt; <br>
                                              &gt; Esse tipo de ataque
                                              NÃO É identificado pelo
                                              fail2ban pois não há logs
                                              gerados.<br>
                                              &gt; <br>
                                              &gt; O telefone
                                              00442075005000 pertence a
                                              um banco (Citi) em
                                              Londres. Pode<br>
                                              &gt; ser apenas um número
                                              teste - se o atacante
                                              receber &quot;CONNECT&quot;, a<br>
                                              &gt; tentativa foi bem
                                              sucedida e ele descarrega
                                              um caminhão de chamadas<br>
                                              &gt; para outros destinos.<br>
                                              &gt; <br>
                                              &gt; Então vale o eterno
                                              conselho: fique de olho -
                                              não confie só no fail2ban.<br>
                                              &gt;
                                              _______________________________________________<br>
                                              &gt; KHOMP: completa linha
                                              de placas externas FXO,
                                              FXS, GSM e E1;<br>
                                              &gt; Media Gateways de 1 a
                                              64 E1s para SIP com R2,
                                              ISDN e SS7;<br>
                                              &gt; Intercomunicadores
                                              para acesso remoto via
                                              rede IP. Conheça em <a href="http://www.Khomp.com" target="_blank">www.Khomp.com</a>.<br>
                                              &gt;
                                              _______________________________________________<br>
                                              &gt; ALIGERA – Fabricante
                                              nacional de Gateways
                                              SIP-E1 para R2, ISDN e
                                              SS7.<br>
                                              &gt; Placas de 1E1, 2E1,
                                              4E1 e 8E1 para PCI ou PCI
                                              Express.<br>
                                              &gt; Channel Bank –
                                              Appliance Asterisk -
                                              Acesse <a href="http://www.aligera.com.br" target="_blank">www.aligera.com.br</a>.<br>
                                              &gt;
                                              _______________________________________________<br>
                                              &gt; Para remover seu
                                              email desta lista, basta
                                              enviar um email em branco
                                              para <a href="mailto:asteriskbrasil-unsubscribe@listas.asteriskbrasil.org" target="_blank">asteriskbrasil-unsubscribe@listas.asteriskbrasil.org</a><br>
                                            </div>
                                          </div>
                                        </div>
                                      </div>
                                    </div>
                                  </div>
                                  <br>
_______________________________________________<br>
                                  KHOMP: completa linha de placas
                                  externas FXO, FXS, GSM e E1;<br>
                                  Media Gateways de 1 a 64 E1s para SIP
                                  com R2, ISDN e SS7;<br>
                                  Intercomunicadores para acesso remoto
                                  via rede IP. Conheça em <a href="http://www.Khomp.com" target="_blank">www.Khomp.com</a>.<br>
_______________________________________________<br>
                                  ALIGERA – Fabricante nacional de
                                  Gateways SIP-E1 para R2, ISDN e SS7.<br>
                                  Placas de 1E1, 2E1, 4E1 e 8E1 para PCI
                                  ou PCI Express.<br>
                                  Channel Bank – Appliance Asterisk -
                                  Acesse <a href="http://www.aligera.com.br" target="_blank">www.aligera.com.br</a>.<br>
_______________________________________________<br>
                                  Para remover seu email desta lista,
                                  basta enviar um email em branco para <a href="mailto:asteriskbrasil-unsubscribe@listas.asteriskbrasil.org" target="_blank">asteriskbrasil-unsubscribe@listas.asteriskbrasil.org</a><br>
                                </blockquote>
                              </div>
                            </div>
                          </div>
                          <br>
                        </div>
                        <br>
                        _______________________________________________<br>
                        KHOMP: completa linha de placas externas FXO,
                        FXS, GSM e E1;<br>
                        Media Gateways de 1 a 64 E1s para SIP com R2,
                        ISDN e SS7;<br>
                        Intercomunicadores para acesso remoto via rede
                        IP. Conheça em <a href="http://www.Khomp.com" target="_blank">www.Khomp.com</a>.<br>
                        _______________________________________________<br>
                        ALIGERA – Fabricante nacional de Gateways SIP-E1
                        para R2, ISDN e SS7.<br>
                        Placas de 1E1, 2E1, 4E1 e 8E1 para PCI ou PCI
                        Express.<br>
                        Channel Bank – Appliance Asterisk - Acesse <a href="http://www.aligera.com.br" target="_blank">www.aligera.com.br</a>.<br>
                        _______________________________________________<br>
                        Para remover seu email desta lista, basta enviar
                        um email em branco para <a href="mailto:asteriskbrasil-unsubscribe@listas.asteriskbrasil.org" target="_blank">asteriskbrasil-unsubscribe@listas.asteriskbrasil.org</a><br>
                      </blockquote>
                    </div>
                  </div>
                </div>
                <span><font color="#888888">
                    <br>
                    <br clear="all">
                    <div><br>
                    </div>
                    -- <br>
                    Thiago Anselmo
                  </font></span></div>
              <br>
              _______________________________________________<br>
              KHOMP: completa linha de placas externas FXO, FXS, GSM e
              E1;<br>
              Media Gateways de 1 a 64 E1s para SIP com R2, ISDN e SS7;<br>
              Intercomunicadores para acesso remoto via rede IP. Conheça
              em <a href="http://www.Khomp.com" target="_blank">www.Khomp.com</a>.<br>
              _______________________________________________<br>
              ALIGERA – Fabricante nacional de Gateways SIP-E1 para R2,
              ISDN e SS7.<br>
              Placas de 1E1, 2E1, 4E1 e 8E1 para PCI ou PCI Express.<br>
              Channel Bank – Appliance Asterisk - Acesse <a href="http://www.aligera.com.br" target="_blank">www.aligera.com.br</a>.<br>
              _______________________________________________<br>
              Para remover seu email desta lista, basta enviar um email
              em branco para <a href="mailto:asteriskbrasil-unsubscribe@listas.asteriskbrasil.org" target="_blank">asteriskbrasil-unsubscribe@listas.asteriskbrasil.org</a><br>
            </blockquote>
          </div>
          <br>
          <br clear="all">
          <div><br>
          </div>
          -- <br>
          <div dir="ltr"><b><font color="#0000ff">att</font></b>
            <div><b><font color="#0000ff">Danilo Almeida</font></b></div>
          </div>
        </div>
      </div>
      <br>
      <fieldset></fieldset>
      <br>
      <pre>_______________________________________________
KHOMP: completa linha de placas externas FXO, FXS, GSM e E1;
Media Gateways de 1 a 64 E1s para SIP com R2, ISDN e SS7;
Intercomunicadores para acesso remoto via rede IP. Conheça em <a href="http://www.Khomp.com" target="_blank">www.Khomp.com</a>.
_______________________________________________
ALIGERA – Fabricante nacional de Gateways SIP-E1 para R2, ISDN e SS7.
Placas de 1E1, 2E1, 4E1 e 8E1 para PCI ou PCI Express.
Channel Bank – Appliance Asterisk - Acesse <a href="http://www.aligera.com.br" target="_blank">www.aligera.com.br</a>.
_______________________________________________
Para remover seu email desta lista, basta enviar um email em branco para <a href="mailto:asteriskbrasil-unsubscribe@listas.asteriskbrasil.org" target="_blank">asteriskbrasil-unsubscribe@listas.asteriskbrasil.org</a></pre>


    </blockquote>
    <br>
  </div></div></div>

<br>_______________________________________________<br>
KHOMP: completa linha de placas externas FXO, FXS, GSM e E1;<br>
Media Gateways de 1 a 64 E1s para SIP com R2, ISDN e SS7;<br>
Intercomunicadores para acesso remoto via rede IP. Conheça em <a href="http://www.Khomp.com" target="_blank">www.Khomp.com</a>.<br>
_______________________________________________<br>
ALIGERA – Fabricante nacional de Gateways SIP-E1 para R2, ISDN e SS7.<br>
Placas de 1E1, 2E1, 4E1 e 8E1 para PCI ou PCI Express.<br>
Channel Bank – Appliance Asterisk - Acesse <a href="http://www.aligera.com.br" target="_blank">www.aligera.com.br</a>.<br>
_______________________________________________<br>
Para remover seu email desta lista, basta enviar um email em branco para <a href="mailto:asteriskbrasil-unsubscribe@listas.asteriskbrasil.org" target="_blank">asteriskbrasil-unsubscribe@listas.asteriskbrasil.org</a><br></blockquote>
</div></div></div><span class="HOEnZb"><font color="#888888">
<br><br clear="all"><div><br></div>-- <br><div dir="ltr"><b style><font color="#0000ff">att</font></b><div><b style><font color="#0000ff">Danilo Almeida</font></b></div>
</div>
</font></span></div>
<br>_______________________________________________<br>
KHOMP: completa linha de placas externas FXO, FXS, GSM e E1;<br>
Media Gateways de 1 a 64 E1s para SIP com R2, ISDN e SS7;<br>
Intercomunicadores para acesso remoto via rede IP. Conheça em <a href="http://www.Khomp.com" target="_blank">www.Khomp.com</a>.<br>
_______________________________________________<br>
ALIGERA – Fabricante nacional de Gateways SIP-E1 para R2, ISDN e SS7.<br>
Placas de 1E1, 2E1, 4E1 e 8E1 para PCI ou PCI Express.<br>
Channel Bank – Appliance Asterisk - Acesse <a href="http://www.aligera.com.br" target="_blank">www.aligera.com.br</a>.<br>
_______________________________________________<br>
Para remover seu email desta lista, basta enviar um email em branco para <a href="mailto:asteriskbrasil-unsubscribe@listas.asteriskbrasil.org">asteriskbrasil-unsubscribe@listas.asteriskbrasil.org</a><br></blockquote></div>
<br></div>