Anshuman S. Rawat wrote:
Hi,Hi Ashuman,
I was trying to setup a call flow according to 3rd party call control model flow 1 (RFC 3725 - Figure 1) using Cisco 7960 phones. In this model, user A (which received an INVITE with no SDP) receives SDP description in the ACK. In the Cisco phones, I noticed that as soon as it received an ACK containing SDP, it sent a BYE.
Has anyone else noticed this behaviour ?
I am using Cisco 7960 SIP phone with firmware version 7.2 (Application load ID: POS3-07-2-00).
Thanks, Anshuman
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In the past I have been able to set-up calls with a Cisco 7960 using an empty initial INVITE (no SDP). Are you sure it is not a codec mismatch problem ? A UA is supposed to do exactly that if it can not handle the negotiated media parameters.
Best Regargs, Antonis _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
