[SIP Beyond VoIP] Port in To header

[Saúl Ibarra Corretgé]

On Feb 13, 2013, at 6:01 PM, Ciprian Hacman wrote:

> Hello all,
> 
> I am trying to use sip simple to subscribe to an BLA/SLA server.
> The SIP message looks like this (from a Polycom phone):
>   SUBSCRIBE sip:192.168.123.200:5170;x-sipX-nonat SIP/2.0
>   Via: SIP/2.0/UDP 192.168.123.202;branch=z9hG4bK8cc585c36CA6B074
>   From: "John Smith" <sip:202 at ezuce.ro>;tag=9F64CACA-5C54C13B
>>  To: <sip:192.168.123.200:5170;x-sipX-nonat>
>   CSeq: 1 SUBSCRIBE
>   Call-ID: 7d5e4d65-7de6c96-57fd1e07 at 192.168.123.202
>   Contact: <sip:202 at 192.168.123.202>
>   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER
>   Event: dialog;sla
>   User-Agent: PolycomVVX-VVX_500-UA/4.0.3.7562
>   Accept-Language: en
>   Accept: application/dialog-info+xml
>   Max-Forwards: 70
>   Expires: 3326
>   Content-Length: 0
> 
> The "To" header contains an IP and a port.
> Sipsimple uses ToHeader() to pare and URI and the result I see in the SUBSCRIBE message does not contain the port anymore.
> 
> Is there a way to send a message that also contains the port in the To header?
> 

Usage of ports in From / To headers is discouraged and thus not supported by SIP SIMPLE SDK. You should use a domain name instead.

--
Saúl Ibarra Corretgé
AG Projects