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Wed 03 of Dec, 2008 [06:27 UTC]

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SIP method invite re-invite

Created by: oej,Last modification on Fri 06 of Jan, 2006 [20:06 UTC] by hoathai
From the SIP RFC:

...This modification can involve changing addresses or ports, adding a media stream, deleting a media stream, and so on. This is accomplished by sending a new INVITE request within the same dialog that established the session. An INVITE request sent within an existing dialog is known as a re-INVITE.

Note that a single re-INVITE can modify the dialog and the parameters of the session at the same time.



re-INVITE caused a lot of trouble if we don't know exactly what's going on with UAC/UAS at the time re-INVITE happen.


Comments

Comments Filter
222

333re-INVITE for Multimedia Conferencing

by arif.zaman, Thursday 18 of May, 2006 [03:28:07 UTC]
What is the exact re-INVITE for Multimedia Conferencing?

Scenario like this:

UA1------->UA2 (on Hold)
UA1------->UA3 (on Hold)
UA1------->UA4

Here, UA1 is caller. UA2, and UA3 are on HOLD.

Help me with your valuable feedback.

Thanks in advance.

222

333

by arif.zaman, Wednesday 17 of May, 2006 [13:30:42 UTC]
222

333Re: Invite (hold)

by chandave, Tuesday 11 of April, 2006 [11:36:07 UTC]
What are you trying to ask? Are you asking how a SIP UA should initiate a HOLD to another SIP UA? If that's the case then it is done with a RE-INVITE. The RE-INVITE will have an SDP that specifies the connection ("c=") should be to 0.0.0.0 (e.g. "c=IN IP4 0.0.0.0").

See ya...

d.c.
222

333Invite (hold)

by qcbn, Tuesday 11 of April, 2006 [10:35:05 UTC]
I don't know re-invite is exactly invite(hold).
If is wrong please tell me what difference between invite and invite(hold) thank you