Johan,
In regards to the first question I think the Invite and the Re-Invite have only
two differences.
The Invite doesn’t has a tag in the To-field, where the Re-Invite contains
To:…;tag=2
In addition the Via-header contains a new branch-id because it’s a new
transaction.
For the second question, I have no experience with OpenSIPS.
Best regards,
John
From: johan <jo...@democon.be>
Sent: vrijdag 2 december 2022 17:23
To: OpenSIPS users mailling list <users@lists.opensips.org>
Subject: reinvite and dialog uniqueness.
1. dialog uniqueness
Alice calls Bob
->INVITE
call-id: 1
from: alice@atlanta;tag=1
to: bob@boston
<- 200
call-id: 1
from: alice@atlanta;tag=1
to: bob@boston;tag=2
-> ACK
call-id: 1
from: alice@atlanta;tag=1
to: bob@boston;tag=2
Bob does a session refresh
<- INVITE
question in on the from tag and the to tag.
should it be
<- INVITE
callid: 1
from: alice@atlanta;tag=1
to: bob@boston;tag=2
or
<- INVITE
call-id: 1
from: alice@atlanta;tag=1
to: bob@boston;tag=2
or
are both the same dialog (call-id + the 2 tags) ?
2. reinvite
Secondly,
when opensips is used as b2bua scenario as below
A opensips B
-> invite ->invite
<-200 <- 200
-> ack ->ack
... ....
<-reinvite for keeeping session
alive.
Is there a way that I can let respond opensips 200 OK on the reinvite without
forwarding the request to A ?
so I want
A opensips B
-> invite ->invite
<-200 <- 200
-> ack ->ack
... ....
<-reinvite for keeeping session
alive.
->200
instead of
A opensips B
-> invite ->invite
<-200 <- 200
-> ack ->ack
... ....
<-reinvite for keeeping session
alive.
<- reinvite
-> 200 ->200
wkr,
Confidential - Limited
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