G722.1 codes same as siren ?

[bvallikkat]

Is g722.1 at 16kbps same as the siren? Is it possible to decode the Microsoft siren RTP data fwith the G722.1 decoder?

thanx,

bindu

[rporter]

No. Not sure what Microsoft Siren does, but to my knowledge you cannot decode it with G722.1 code.

Here are a couple links to other discussions of this:

http://softwareforums.intel.com/ids/board/message?board.id=IPP&message.id=1987

http://softwareforums.intel.com/ids/board/message?board.id=IPP&message.id=2902

Enjoy,

Rick

[Igor_B_Intel1]

Hi, Rick.

Could you tell me how you connect to the Communicator throw SIP? I mean ports and how does theSIPURI look like? Can I create P2P without server?

Igor.

[rporter]

Hi Igor,

I'm not aware of how to setup Communicator in a P2P mode. Everything I have done hasMicrosoft's Live Communication Server (LCS) in the middle. Communicator is an IM client that has ability to do voice, so the first thing it looks for is somewhere to login. I talked with a couple people around here, and P2P Communicator is not something we have done.

Below, I've included an example of a SIP INVITE with SIREN.

Hope this helps.

Enjoy,

Rick

No. Time Source Destination Protocol Info
44 5.872011 192.168.216.217 192.168.216.130 SIP/SDP Request: INVITE sip:TomBrady@nfl.com, with session description

Frame 44 (1247 bytes on wire, 1247 bytes captured)
Ethernet II, Src: 00:11:11:62:69:77, Dst: 00:04:23:b7:a0:73
Internet Protocol, Src Addr: 192.168.216.217 (192.168.216.217), Dst Addr: 192.168.216.130 (192.168.216.130)
Transmission Control Protocol, Src Port: 4517 (4517), Dst Port: 5060 (5060), Seq: 9005, Ack: 16930, Len: 1193
Session Initiation Protocol
Request-Line: INVITE sip:TomBrady@nfl.com SIP/2.0
Message Header
Message body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): - 0 0 IN IP4 192.168.216.217
Session Name (s): session
Connection Information (c): IN IP4 192.168.216.217
Bandwidth Information (b): CT:1000
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 9642 RTP/AVP 97 111 112 6 0 8 4 5 3 101
Encryption Key (k): base64:aA0Q6TtyyOrnwwAozGlZ/cwnG6+OIkoADCWhW/ezgzc
Media Attribute (a): rtpmap:97 red/8000
Media Attribute (a): rtpmap:111 SIREN/16000
Media Attribute (a): fmtp:111 bitrate=16000
Media Attribute (a): rtpmap:112 G7221/16000
Media Attribute (a): fmtp:112 bitrate=24000
Media Attribute (a): rtpmap:6 DVI4/16000
Media Attribute (a): rtpmap:0 PCMU/8000
Media Attribute (a): rtpmap:8 PCMA/8000
Media Attribute (a): rtpmap:4 G723/8000
Media Attribute (a): rtpmap:5 DVI4/8000
Media Attribute (a): rtpmap:3 GSM/8000
Media Attribute (a): rtpmap:101 telephone-event/8000
Media Attribute (a): fmtp:101 0-16
Media Attribute (a): encryption:optional