[AsteriskBrasil] RES: Dicas para instalacao de pbx residencial

[[SERGICON] Leandro Melo]

Prezados,
 
Encontrei na internet uma entrevista (em ingles) com o criador do Skype,
segue abaixo um trecho sobre a integracao com SIP e o link da materia
completa:
 
HYPERLINK
"http://www.theregister.co.uk/2004/06/22/sip_versus_skype/"http://www.thereg
ister.co.uk/2004/06/22/sip_versus_skype/
 
 

Skype must marry SIP


Mahy thinks that eventually Skype will have to be connected to SIP,
otherwise Skype users will be let unable to talk to the rest of the world.

"Sure, he 'could' use something else, but that would be economic suicide.
When asked how he would get PSTN numbers assigned he said he would use
partners who are telecom operators to provide these. These providers are
already using SIP or H.323 and have no economic incentive to 'each' build a
native-Skype interface on the thin margins that Skype is hoping to garner
from its customers."

So, Faultline asked why doesn't Mahy write a connection to Skype, using the
APIs that Skype is intending to publish: after all, he has 13 million users?
"He doesn't have 13 million 'active' users, far from it, so it is really not
worth my time. I would rather spend my energy writing a free client with
more functionality that is fully open." So does Skype need to talk to SIP
clients one day or can it just talk to the PSTN and then route back out to
SIP clients?

"That's missing the point, don't you think? Say a Skype user in India wants
to communicate with me in California on a SIP network. He can make a basic
call through 2 gateways with international toll charges.

"Its unlikely that I will see his correct caller ID, and dead certain that
we can't exchange IM, video, presence status, or do file transfers. A pair
of implementations using SIP could do this for free over the public
Internet."

Talk then turned to the security that Zennstrom says exists in Skype that
doesn't exist in SIP. Mahy thinks the Skype approach is inviting viruses,
Zennstrom says this is not possible. According to Zennstrom there is little
danger of a call through Skype resulting in a route for a virus because the
recipient is told there is a call for him and is asked to call out to meet
it.

Mahy tells us that there are rapidly appearing firewalls that are
deliberately eliminating use of peer-to-peer networks, including the one
Skype sits on, because of security issues.

"Once my machine is infected with a virus, that virus can do lots of rude
things with the Skype API. The virus could call a PSTN toll or international
service from my account and leave it up for days. The virus could spam call
my entire buddy list a few times an hour. The virus could turn my computer
into a remote-control microphone. These are the kinds of issues that IT
administrators are concerned about. Also, many administrators want to block
p2p to prevent liability from the RIAA and similar groups. With at least one
product the side effect is no Skype."

© Copyright 2004 HYPERLINK
"http://cnb-host4.clickandbuild.com/cnb/shop/register?listPos=&productID=183
&search=Faultline&op=catalogue-product_info-null"Faultline

Faultline is published by Rethink Research, a London-based publishing and
consulting firm. This weekly newsletter is an assessment of the impact of
events that have happened each week in the world of digital media. Faultline
is where media meets technology. Subscription details HYPERLINK
"http://cnb-host4.clickandbuild.com/cnb/shop/register?listPos=&productID=183
&search=Faultline&op=catalogue-product_info-null"here.


   _____  

De: asteriskbrasil-bounces em listas.asteriskbrasil.org
[mailto:asteriskbrasil-bounces em listas.asteriskbrasil.org] Em nome de Victor
Carvalho
Enviada em: quinta-feira, 5 de janeiro de 2006 14:53
Para: asteriskbrasil em listas.asteriskbrasil.org
Assunto: Re: [AsteriskBrasil] Dicas para instalacao de pbx residencial


O hardware parece servir a todos os serviços que vc quer, canais analógicos
- com zap, fax - não sei como fazer mas já li algumas coisas dizendo como é
possível, URA - fácil fácil com asterisk, e secretária - implementada com
voicemail.

Agora tenho uma dúvida, vc quer implementar a integração do asterisk com o
Skype? como se faz isso uma vez que o codec dele é proprietário e os padrões
fechados, já existe algum módulo do asterisk ou alguém que desenvolveu uma
solução que trata isso? Ou vc apenas usaria também a máquina do asterisk
como um gateway de internet? 
Pelo que entendi, vc quer usar o skype para o pessoal da empresa se
comunicar internamente, é isso?


Em 04/01/06, Leandro Costa <HYPERLINK "mailto:lscosta em uninet.com.br"
lscosta em uninet.com.br> escreveu: 

Boa Noite a todos,

Estou querendo construir um pabx para casa como software livre. 

Hardware inicial:
- Pentium III com 512, HD 8 GB
- Fax modem externa USROBOTICS
- 1 linha de voz telemar
- 1 linha de velox 300

Objetivo no asterisk:

- 4 ramais analogicos
- Recebimentoe envio de fax 
- URA para atendimento com opcoes (ex. fax, ramal. secretaria)
- conexao com a skype e possibilidade de falar com pessoal que tbem usam
skype
- Interfone com opcao de secretaria eletronica

Ai tenho algumas duvidas !!! 

O hardware esta bom ?

Preciso de + alguma coisa ?

onde consigo um howto ?

estou baixando o asteriskathome !!

grato pela atencao
Leandro Costa




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