Comet Labs IPTEL-S Manual de usuario descargar pdf (Pagina 32)

Message - SAMPLE

8/31/2005 Copyright - Ahlgren 2005 32

AhlTek

Request Message line Description

INVITE sip:[email protected] m SIP/2.0 Method type, request URI (of called party), SIP

version. (ie. The Start Line)

Via: SIP/2.0/UDP Address of previous hop. (ie. Begin Header)

userA.yahoo.com (on next line)

From: userA. <sip:[email protected]> User originating this request.

To: userB. <sip:[email protected]> User being invited, as specified originally.

Call-ID: 7607607600@userA.yahoo.com Globally unique ID of this call.

CSeq: 1 INVITE Command sequence. Identifies transaction.

Subject: Lunch today. Call subject and/or nature.

Content-Type: application/SDP Type of body—in this case SDP.

Content-Length: 182 Number of bytes in the body.

Blank line marks end of SIP headers and beginning of body.

v=0 Version of SDP. (ie. The start of Body)

o=userA 53655765 2353687637 IN IP4

128.3.4.5

Etc. Dependent on the content-type above

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 49 50

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Comet Labs IPTEL-S Manual de usuario Pagina 32