[SIPForum-discussion] SIP Re-invite Query

[Aniella Juverdeanu]

Hi,

So SIP RE-Invite with new SDP is totally ok and it works in my network. But It will depend if the other endpoint supports the new CODEC. If you send only a new CODEC in SDP but do not know the far-end capabilities (depending on originated or terminated call), it might be risky the re-Invite to be rejected as not supported. But if the old CODEC is still part of the CODEC list in another priority position, it will at least default to that.

Regards,
Aniella

From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of NK
Sent: February 10, 2015 06:04 PM
To: discussion
Subject: [SIPForum-discussion] SIP Re-invite Query

Dear All,

I have a query related to SIP-re-invite.

Can you pleae advise if we can send the re-invite with new codec.

Suppose initial offer had G729A and call established successfully after 200 OK. Now suppose if my UAC send the "reinivte" along with G711 or G729 AB or annex=b" and there on G729A in reinvite is that reinvite will work?

Regards,
Nitin Kapoor


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