Hi Amy
The UAS can send any number of 100 Trying responses. See the following excerpt
from RFC 3261.
17.2.1 INVITE Server Transaction
When a server transaction is constructed for a request, it enters the
"Proceeding" state. The server transaction MUST generate a 100
(Trying) response
On Mon, 2009-08-24 at 08:26 -0700, Amy Hwang wrote:
> Let's say SDP is offered with the following media line:
>
> m=audio 12345 RTP/AVP 97
> a=rtpmap:97 PCMU/8000
>
> That is, a dynamic payload type of 97 is being used to represent
> PCMU/8000, which is also mapped to the static payload type of 0
On Tue, 2009-09-08 at 23:24 +0200, Thomas Gelf wrote:
> The problem we were talking about are clients filling the registrars
> location database with multiple (usually in the range of 3-30) different
> records. Same UAC, same Call-ID, same username, same (official) IP but
> changing port in their C
On Sun, 2009-08-30 at 12:20 +0530, vijay wrote:
> Hi,
> If we get different contact in 200 response for Register request, Is it
> successful registration?
> If yes, Can we consider the expires(for reg refresh) value present
> in the Contact?
> If no, Please suggest, what should we d
2009/9/15 Amy Hwang :
>
> Hello,
>
> In RFC 3261 (or 3262 if applicable), is it legal for a UAS to send multiple
> 100 provisional responses within the same INVITE transaction? It seems to be
> the common practice to send at most one, but I can't find anything explicitly
> disallowing sending mo
Hello,
In RFC 3261 (or 3262 if applicable), is it legal for a UAS to send multiple 100
provisional responses within the same INVITE transaction? It seems to be the
common practice to send at most one, but I can't find anything explicitly
disallowing sending more than one 100 response.
Thanks,
Bhanu K S (bhks) wrote:
> I believe 422 can be send only by UAS not UAC.
> If UAC receives 200 OK with Session-Expires as 10 seconds(which is less
> than 90 default), it is against RFC.
> So it is UAC implementation either it can continue to be in the call or
> disconnect.
That's correct, I didn
The UAC may terminate the call with BYE and include Reason header in it.
Dushyant P S Dhalia
vijay wrote:
Hi,
The caller sends INVITE with Session-Expires as 1800. Min-SE expires is
not present.
The callee sends 200 Ok with Session-Expires as 10 seconds.
As per RFC, if Mi
Hi Vijay
IMO, the caller should reject a 200 OK response with such a small session
refresh interval.
Excerpts from RFC 4028 Session Timer in SIP
4. Session-Expires Header Field Definition
Small session intervals can be destructive to the network. They
cause excessive messaging traffic
I believe 422 can be send only by UAS not UAC.
If UAC receives 200 OK with Session-Expires as 10 seconds(which is less
than 90 default), it is against RFC.
So it is UAC implementation either it can continue to be in the call or
disconnect.
-Bhanu
-Original Message-
From: sip-implementor
Hi
INFO method is defined in RFC 2976. But yes "dtmf" and "dtmf-relay" are
not standard defined mime types. No there is no registered MIME type for
DTMF.
Regards
Ranjit
-Original Message-
From: sip-implementors-boun...@lists.cs.columbia.edu
[mailto:sip-implementors-boun...@lists.cs.c
vijay wrote:
> The caller sends INVITE with Session-Expires as 1800. Min-SE expires is
> not present.
> The callee sends 200 Ok with Session-Expires as 10 seconds.
>
> As per RFC, if Min-SE is not present, the default is 90 seconds.
> In this error case, can the user stop the call? Pl clarify.
Hi,
Thanks for your reply.
The link below gives two MIME types application/dtmf and application/dtmf-relay
but additionally gives the Note ->
"Note: dtmf-relay or dtmf are not yet IANA registered application mime types"
Is there some other registered MIME type for DTMF?
Rgds,
Shefali
-O
Hi,
Thanks for your reply.
RFC 2833 does not talk of SIP INFO method. It only talks of carrying the DTMF
in RTP payload?
Is there any other reference or I have not understood 2833 correctly?
Rgds,
Shefali
-Original Message-
From: Avasarala Ranjit-A20990 [mailto:ran...@motorola.com]
S
Hi All,
How DTMF is carried using SIP INFO method? I found some examples using
Content type application/dtmf and application/dtmf-relay. Which is the
reference RFC for these content types?
Rgds,
Shefali
"DISCLAIMER: This message is proprietary to Aricent and
If A says 97 and B says 101,
B must send using payload 97
A must send using payload 101
They work like ports:
If A says port 1 and B says port 2
B must send to port 1
A must send to port 2
In the case of RTP, if a particular codec was referenced with a
specific payload
Hi,
The caller sends INVITE with Session-Expires as 1800. Min-SE expires is
not present.
The callee sends 200 Ok with Session-Expires as 10 seconds.
As per RFC, if Min-SE is not present, the default is 90 seconds.
In this error case, can the user stop the call? Pl
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