[AsteriskBrasil] Interligação de Asterisks IAX2 ou SIP Thunk

[Wagner Mazuchi de Lima Junior]

Trunk IAX2 com certeza.

Em 6 de setembro de 2011 20:49, Ulisses Feres - Abratel Telecom
<uferes em abratel.com.br> escreveu:
> na minha opiniao iax sem duvidas.
> Vulgarmente falando alem da questao de porta (somente uma porta udp para
> trabalhar) tem, se nao me engano, uma forma (trunk) que ameniza uso de
> trafego..
> Isso fala aqui:
> retirado voip-info:
>
> The IAX revision 2 protocol is used by the Asterisk VOIP PBX and FreeSwitch
> Softswitch as an alternative to SIP, H.323, etc. when connecting to other
> devices that support IAX (a limited list at the moment, but growing very
> rapidly). However meanwhile other software like Yate SofaSwitch and OPAL
> have added IAX2 support.
>
> •IAX2 is not the result of a standards group, rather a collaborative,
> community based effort (Note: IAX2 is now: RFC 5456)
> •IAX2 uses a single UDP port 4569, and thus works well in NAT environments
> (the obsolete IAX1 protocol used port 5036). IAX2 uses ONLY one udp port for
> both control and data traffic. As outlined in point 4 of the IAX versus SIP
> topic with IAX you will always have audio if the control connection can be
> established.
> •IAX2 supports PKI-style authentication and trunking.
> •The Asterisk IAX2 driver has a jitter buffer. (The SIP driver doesn't in
> 1.2.x, but one has been added in 1.4.x. The IAX2 jitterbuffer is more mature
> however.)
>
> Trunking
> When trunking with IAX2, only the used bandwidth is allocated at all times.
> Other TDMoIP protocols used for trunking always allocate a certain amount of
> bandwidth to keep all channels open. IAX trunking allows multiple voice
> streams to share a single "trunk" to another server, reducing overhead
> created by IP packets. IAX always sends DTMF outline (RFC2833), eliminating
> the confusion often found with SIP.
>
> It should be noted that trunking requires both sides to know each other
> (i.e. they need to be valid peers). If one side has trunk=yes and the other
> does not cannot validate the peer, you will get one-way audio. The easiest
> way to make this work is to use a register line to register to the systems
> you want to trunk with.
>
> --
> Obg,
> Ulisses Féres.
> Abratel Telecom
> uferes em abratel.com.br
> 32-3722-4004 ramal 928
> Em 6 de setembro de 2011 20:30, Thiago Gomes <thiagomespb em gmail.com>
> escreveu:
>>
>> Pessoal,
>>
>> Estou analisando um cenário entre Asterisk, qual seria o melhor para
>> interligar
>> os mesmos ? IAX2 ou SIP Trunk,
>>
>> Qual é a vantagem ou desvantagem dos dois.. E vcs basicamente usam qual e
>> pq ??
>>
>> --
>> Thiago Gomes
>
>
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