Re: [Sip-implementors] Which should be the behaviour of a watcher when receiving NOTIFY with Subscription-State: pending?

2009-07-16 Thread Iñaki Baz Castillo
2009/7/16 Vikram Chhibber vikram.chhib...@gmail.com: It does not make sense to transaction from active to pending. RFC 3857 also does not show this transaction. Why not move from active to terminated with reason rejected? Alice UA can show Bob as offline always. Which IMO, is modest approach

Re: [Sip-implementors] Which should be the behaviour of a watcher when receiving NOTIFY with Subscription-State: pending?

2009-07-16 Thread Iñaki Baz Castillo
2009/7/16 Vikram Chhibber vikram.chhib...@gmail.com: It does not make sense to transaction from active to pending. RFC 3857 also does not show this transaction. Why not move from active to terminated with reason rejected? Alice UA can show Bob as offline always. Which IMO, is modest approach

Re: [Sip-implementors] Changing SSRC during Call

2009-07-16 Thread Shanbhag, Somesh (NSN - IN/Bangalore)
I think most of the times it depends upon the implementation. In one of the product which I had worked on, this was one of the configurable options to be turned on if we have to detect some kind of rogue packets. There will be different checks to be made to consider the packet as the rogue and

Re: [Sip-implementors] Which should be the behaviour of a watcher when receiving NOTIFY with Subscription-State: pending?

2009-07-16 Thread Iñaki Baz Castillo
2009/7/16 Iñaki Baz Castillo i...@aliax.net: 2009/7/16 Vikram Chhibber vikram.chhib...@gmail.com: It does not make sense to transaction from active to pending. RFC 3857 also does not show this transaction. Why not move from active to terminated with reason rejected? Alice UA can show Bob as

[Sip-implementors] Changing SSRC during Call

2009-07-16 Thread Michael Hirschbichler
Hi all, is it a problem, when a RTP-stream during a call is replaced by another RTP-stream? Let's assume, stream with SSRC1 is arriving at a UAC (100.11.12.13:12345). Now, the stream stops (without any SIP-signalling like Re-INVITEs, etc.) and a stream with SSRC2 is now arriving at

[Sip-implementors] any SIPSoft Phone with g729AB

2009-07-16 Thread Sudhir Kumar Reddy
Hi All, Is there any SIPSoft pohne which support G729AB codec? I tried googling but I couldn't succeed on same. Please do let me know if any info on same Thanks and Rgds Sudhir Yahoo! recommends that you upgrade to the new and safer Internet Explorer 8.

Re: [Sip-implementors] any SIPSoft Phone with g729AB

2009-07-16 Thread Iñaki Baz Castillo
2009/7/16 Sudhir Kumar Reddy sudhir_kuma...@yahoo.co.in: Hi All, Is there any SIPSoft pohne which support G729AB codec? This is not a question for this list. However, you won't find a free softphone with G729 codec (it requires royalties payment). -- Iñaki Baz Castillo i...@aliax.net

Re: [Sip-implementors] any SIPSoft Phone with g729AB

2009-07-16 Thread Alex Balashov
Sudhir Kumar Reddy wrote: Is there any SIPSoft pohne which support G729AB codec? I tried googling but I couldn't succeed on same. Please do let me know if any info on same The purpose of this mailing list is to discuss SIP protocol mechanics, formal behaviour per IETF standards, and

Re: [Sip-implementors] Changing SSRC during Call

2009-07-16 Thread Michael Hirschbichler
Hi, but is there a standard defining the behaviour? I guess, there is no need to compare SSRC of every incoming RTP-packet on the client (Well - security reasons as RTP-spoofing left beside). I am looking for a quotable reference regarding the SSRCs inside of RTP-streams managed by SIP/SDP

Re: [Sip-implementors] Differences between outbound proxy and proxy

2009-07-16 Thread Tomasz Zieleniewski
Hi, Outbound proxy is a 100% SIP Proxy. The distinction is based on the logical functions it performs. It is the intermediate SIP node which needs to be included on the signalling path in order to get access to SIP services. It is usually pointed be the predefined Route set. Kind regards, -

Re: [Sip-implementors] Changing SSRC during Call

2009-07-16 Thread Robert Joly
Hi, but is there a standard defining the behaviour? I guess, there is no need to compare SSRC of every incoming RTP-packet on the client (Well - security reasons as RTP-spoofing left beside). I am looking for a quotable reference regarding the SSRCs inside of RTP-streams managed by

Re: [Sip-implementors] Changing SSRC during Call

2009-07-16 Thread Mark R Lindsey
A participant need not use the same SSRC identifier for all the RTP sessions in a multimedia session; -- RFC 1918, Section 3. In practice, many devices do not expect the SSRC to change routinely. Heuristically, in an ordinary phone call, a changing SSRC may indicate that two streams are

[Sip-implementors] Changing SSRC during Call

2009-07-16 Thread Michael Hirschbichler
Hi all, is it a problem, when a RTP-stream during a call is replaced by another RTP-stream? Let's assume, stream with SSRC1 is arriving at a UAC (100.11.12.13:12345). Now, the stream stops (without any SIP-signalling like Re-INVITEs, etc.) and a stream with SSRC2 is now arriving at