[SIP Beyond VoIP] Conference specific querry : 403 Forbidden is coming while referring second user

Saúl Ibarra Corretgé saul at ag-projects.com
Wed Jan 2 09:43:52 CET 2013


On Dec 17, 2012, at 4:30 PM, Meraj Ahmad Ansari wrote:

> Hi,
> I am trying to initiate adhoc conference by using sip2sip info server but not able to call othere participant. Following is my flow -
> 	• register with sip2sip.info
> 	• created a new conference room by inviting test at conference.sip2sip.info
> 	• refer second user
> but i am getting 403 Forbidden in Notify.

What SIP client are you using? Can you attach a full SIP trace showing the problem?

> I compared my logs with logs available at http://www.slideshare.net/saghul/sip-conferencing-reloaded and found only 2 difference -
> 	• My "Refer-To" is like - Refer-To: <sip:xyz at sip2sip.info> and your "Refer-To" is like - Refer-To: <sip:saghul at sip2sip.info>;method=INVITE

SylkServer will consider a missing "method" parameter as it were an INVITE, that shouldn't be a problem.

> 	• My message is without "Refered-By" tag.

This is just optional, it shouldn't affect normal behavior.


Saúl Ibarra Corretgé
AG Projects

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