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1、MESSAGE消息
      1)头字段填写说明
      Call-id:                 必选
      CSeq:                   必选
      From:                   必选
      To:                       必选
      Max-Forwards: 必选
      Via:                      必选
      常用的可选参数:
      指定的消息体
      2)消息实例
      发送MESSAGE请求消息给192.168.2.48的6010端口,参考消息如下(带了“Hello的消息体):
MESSAGE sip:1897778888@192.168.2.48:6010 SIP/2.0
Call
-ID: 8e12c17121ac4121bf927f6fd8013358@192.168.2.89
From<sip:01052237300@192.168.2.89>;tag=-0037-708c9a5cba8dd878
To<sip:1897778888@192.168.2.89>
CSeq: 
1 MESSAGE
Via: SIP
/2.0/UDP 192.168.2.89:14010;branch=z9hG4bK--22bd7222
Max-Forwards: 30
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,
UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY,MESSAGE
Contact: 
<sip:192.168.2.89:14010>
Content
-Type: text/plain
Content
-Length: 5

Hello
      收到来自192.168.2.48的6010端口的返回消息,参考消息如下(修改了消息体的内容,变成了“Hello amigo”):
SIP/2.0 200 OK
Via: SIP
/2.0/UDP 192.168.2.89:14010;branch=z9hG4bK--22bd7222
From<sip:01052237300@192.168.2.89>;tag=-0037-708c9a5cba8dd878
To<sip:1897778888@192.168.2.89>;tag=-002-3c18e810ab17c76f
Call
-ID: 8e12c17121ac4121bf927f6fd8013358@192.168.2.89
CSeq: 
1 MESSAGE
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,
UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY,MESSAGE
Contact: 
<sip:192.168.2.48:54010>
Content
-Type: text/plain
Content
-Length: 11

Hello amigo

2、REGISTER消息
       1)头字段填写说明
       Call-id:                 必选
       Cseq:                   必选
       From:                   必选
       To:                       必选
       Max-Forwards: 必选
       Via:                      必选
       Contact:              必选
       Authorization:   必选
       Expires:               常用可选头
       2)非鉴权注册消息实例
       在该实例中192.168.2.161机器发送注册消息给192.168.2.89服务器,发送消息实例如下:
REGISTER sip:192.168.2.89 SIP/2.0
Via: SIP
/2.0/UDP 192.168.2.161:10586
Max-Forwards: 70
From<sip:01062237496@192.168.2.89>;tag=ca04c1391af3429491f2c4dfbe5e1b2e;epid=4f2e395931
To<sip:01062237496@192.168.2.89>
Call
-ID: da56b0fab5c54398b16c0d9f9c0ffcf2@192.168.2.161
CSeq: 
1 REGISTER
Contact: 
<sip:192.168.2.161:10586>;methods="INVITE, MESSAGE, INFO, SUBSCRIBE, OPTIONS, BYE, CANCEL, NOTIFY, ACK, REFER"
User-Agent: RTC/1.2.4949 (BOL SIP Phone 1005)
Event: registration
Allow
-Events: presence
Content
-Length: 0
      当注册成功(回送200 OK)时,服务器发送的res消息参考如下:
SIP/2.0 200 OK
Via: SIP
/2.0/UDP 192.168.2.161:10586
From<sip:01062237496@192.168.2.89>;tag=ca04c1391af3429491f2c4dfbe5e1b2e;epid=4f2e395931
To<sip:01062237496@192.168.2.89>;tag=-00834-14d0805b62bc026d
Call
-ID: da56b0fab5c54398b16c0d9f9c0ffcf2@192.168.2.161
CSeq: 
1 REGISTER
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,
UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY,MESSAGE
Contact: sip:
192.168.2.161:10586
Content
-Length: 0
Expires: 
3600
       3)鉴权注册消息实例
       当需要鉴权注册时,当请求端192.168.2.161使用BOL或xlite等发送注册消息给192.168.2.89服务器时,服务器对192.168.2.161发送“401 Unauthorized”信息给请求端,提示请求段需要带上鉴权信息重新注册,请求端带上鉴权信息后(带有“Authorization”头字段)重新向服务器注册,服务器验证鉴权头的正确性,如果鉴权成功,给请求端发送200 OK消息。若失败,继续发送401消息。
       第一步:请求端(192.168.2.161)发送REGISTER消息,参考消息如下:
REGISTER sip:192.168.2.89 SIP/2.0
Via: SIP
/2.0/UDP 192.168.2.161:8021
Max-Forwards: 70
From<sip:01062237493@192.168.2.89>;tag=efca469543ce4788a6a6a2c7b66cd01f;epid=de4504430d
To<sip:01062237493@192.168.2.89>
Call
-ID: c88a247a74b54a8c9e676bdde3bba6c9@192.168.2.161
CSeq: 
1 REGISTER
Contact: 
<sip:192.168.2.161:8021>;methods="INVITE, MESSAGE, INFO, SUBSCRIBE, OPTIONS, BYE, CANCEL, NOTIFY, ACK, REFER"
User-Agent: RTC/1.2.4949 (BOL SIP Phone 1005)
Event: registration
Allow
-Events: presence
Content
-Length: 0
     第二步:服务器端(192.168.2.89)检查到需要鉴权,给请求端发送401结果码,并带上“WWW-Authenticate”头信息,参考消息如下:
SIP/2.0 401 Unauthorized
Via: SIP
/2.0/UDP 192.168.2.161:8021
From<sip:01062237493@192.168.2.89>;tag=efca469543ce4788a6a6a2c7b66cd01f;epid=de4504430d
To<sip:01062237493@192.168.2.89>;tag=-001893-38ba013ba3dde36e
Call
-ID: c88a247a74b54a8c9e676bdde3bba6c9@192.168.2.161
CSeq: 
1 REGISTER
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,
UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY,MESSAGE
Contact: 
<sip:192.168.2.89:14010>
Content
-Length: 0
WWW
-Authenticate: Digest realm="192.168.2.89", qop="auth", nonce="e17d377c3d2d9c343e26576a7fd04738481dfc10", opaque="", stale=FALSE, algorithm=MD5
      第三步:请求端(192.168.2.161)通过“Authorization”头字段带上鉴权头信息,发送一个新的REGISTER消息,参考消息如下:
REGISTER sip:192.168.2.89 SIP/2.0
Via: SIP
/2.0/UDP 192.168.2.161:8021
Max-Forwards: 70
From<sip:01062237493@192.168.2.89>;tag=efca469543ce4788a6a6a2c7b66cd01f;epid=de4504430d
To<sip:01062237493@192.168.2.89>
Call
-ID: c88a247a74b54a8c9e676bdde3bba6c9@192.168.2.161
CSeq: 
2 REGISTER
Contact: 
<sip:192.168.2.161:8021>;methods="INVITE, MESSAGE, INFO, SUBSCRIBE, OPTIONS, BYE, CANCEL, NOTIFY, ACK, REFER"
User-Agent: RTC/1.2.4949 (BOL SIP Phone 1005)
Authorization: Digest username="01062237493", realm="192.168.2.89", qop=auth, algorithm=MD5, uri="sip:192.168.2.89", nonce="e17d377c3d2d9c343e26576a7fd04738481dfc10", nc=00000001, cnonce="12660455546344082314666316435946", response="f57e47ce03162293b9ced07362ce2b79"
Event: registration
Allow
-Events: presence
Content
-Length: 0
      第四步:服务器端(192.168.2.89)验证鉴权信息的合法性,若验证成功,发送200 OK消息,参考消息如下:
SIP/2.0 200 OK
Via: SIP
/2.0/UDP 192.168.2.161:8021
From<sip:01062237493@192.168.2.89>;tag=efca469543ce4788a6a6a2c7b66cd01f;epid=de4504430d
To<sip:01062237493@192.168.2.89>;tag=-001894-a5eb977c8969aa51
Call
-ID: c88a247a74b54a8c9e676bdde3bba6c9@192.168.2.161
CSeq: 
2 REGISTER
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,
UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY,MESSAGE
Contact: sip:
192.168.2.161:8021
Content
-Length: 0
Expires: 
3600

3、SUBSCRIBE消息
 
     1)头字段填写说明
      Call-id:                 必选
      CSeq:                   必选
      From:                    必选
      To:                        必选
      Max-Forwards: 必选
      Via:                       必选
      Expires:                常用可选头
      2)消息实例
      请求端(192.168.2.161)给服务器端(192.168.2.89)发送SUBSCRIBE消息,参考消息如下:
SUBSCRIBE sip:01062237498@192.168.2.89:5060 SIP/2.0
Via: SIP
/2.0/UDP 192.168.2.161:32092;branch=z9hG4bK-d87543-ec03ee3e022acf28-1--d87543-;rport
Max-Forwards: 70
Contact: 
<sip:01062237498@192.168.2.161:32092>
To: "01062237498"<sip:01062237498@192.168.2.89:5060>
From: "01062237498"<sip:01062237498@192.168.2.89:5060>;tag=e01c2548
Call
-ID: NDQzMGE1MDMzYWU0NjRiYzMxMGY3NGUxMjBhMjBkNTQ.
CSeq: 
1 SUBSCRIBE
Expires: 
300
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
User-Agent: eyeBeam release 1011d stamp 40820
Event: message
-summary
Content
-Length: 0
      服务器端(192.168.2.89)发送回执的200 OK信息,参考消息如下:
SIP/2.0 200 OK
Via: SIP
/2.0/UDP 192.168.2.161:32092;branch=z9hG4bK-d87543-ec03ee3e022acf28-1--d87543-;rport
From: "01062237498"<sip:01062237498@192.168.2.89:5060>;tag=e01c2548
To: "01062237498"<sip:01062237498@192.168.2.89:5060>
Call
-ID: NDQzMGE1MDMzYWU0NjRiYzMxMGY3NGUxMjBhMjBkNTQ.
CSeq: 
1 SUBSCRIBE
Content
-Length: 0

4、INVITE消息
        1)头字段填写说明
        必选头域如下:
        Call-id
        Contact
        CSeq
        From
        To
        Max-Forwards
        Via
        Supported
        Allow
        常用可选头域:
        Accept
        Authorization
        Content-length
        Content-type
        Record-Route
        Route
        Require
        Proxy-Authorization
        Proxy-require
        P-asserted-identity
        P-prefered-identity
        Privacy
        2)非鉴权INVITE消息实例
        在这个实例中,笔者在本机(192.168.2.161)上使用BOL注册了17899998888号码,呼叫01062230001号码时发送INVITE消息给服务器(192.168.2.89)的软交换,发送INVITE消息参考如下:
INVITE sip:01062230001@192.168.2.89 SIP/2.0
Via: SIP
/2.0/UDP 192.168.2.161:9545
Max-Forwards: 70
From: "Administrator" <sip:17899998888@192.168.2.89>;tag=2dc6e1000081463ba14f7db4e50b8643;epid=d6b5434cef
To<sip:01062230001@192.168.2.89>
Call
-ID: 31e72e80d5b04f52aba6cb8be8f3c0c0@192.168.2.161
CSeq: 
1 INVITE
Contact: 
<sip:192.168.2.161:9545>
User-Agent: RTC/1.2
Content
-Type: application/sdp
Content
-Length: 691

v
=0
o
=- 0 0 IN IP4 192.168.2.161
s
=session
c
=IN IP4 192.168.2.161
b
=CT:1000
t
=0 0
m
=audio 56284 RTP/AVP 97 111 112 6 0 8 4 5 3 101
k
=base64:fGmazgf5GXZfJxZ27G9A7rxA4B7KX0pHrjYELKphPog
a
=rtpmap:97 red/8000
a
=rtpmap:111 SIREN/16000
a
=fmtp:111 bitrate=16000
a
=rtpmap:112 G7221/16000
a
=fmtp:112 bitrate=24000
a
=rtpmap:6 DVI4/16000
a
=rtpmap:0 PCMU/8000
a
=rtpmap:8 PCMA/8000
a
=rtpmap:4 G723/8000
a
=rtpmap:5 DVI4/8000
a
=rtpmap:3 GSM/8000
a
=rtpmap:101 telephone-event/8000
a
=fmtp:101 0-16
a
=encryption:optional
m
=video 61432 RTP/AVP 34 31
k
=base64:W5uTU8sIQjJVPWyRF31GZouVwAHFtE1cAmblK+mvDdI
a
=recvonly
a
=rtpmap:34 H263/90000
a
=rtpmap:31 H261/90000
a
=encryption:optional
        其中m行表示支持的媒体编码,其中“m=audio 56284 RTP/AVP 97 111 112 6 0 8 4 5 3 101”指明了几种支持的音频媒体类型,“m=video 61432 RTP/AVP 34 31”指明了几种支持的视频媒体类型。软交换服务器(192.168.2.89)接收到INVITE消息后,即刻发送了100 trying消息,如下所示:
SIP/2.0 100 Trying
Via: SIP
/2.0/UDP 192.168.2.161:9545
From: "Administrator" <sip:17899998888@192.168.2.89>;tag=2dc6e1000081463ba14f7db4e50b8643;epid=d6b5434cef
To<sip:01062230001@192.168.2.89>
Call
-ID: 31e72e80d5b04f52aba6cb8be8f3c0c0@192.168.2.161
CSeq: 
1 INVITE
Content
-Length: 0
      软交换服务器(192.168.2.89)查找被叫号码消息,并发送INVITE消息给被叫的地址,接收到被叫的100 trying消息,而后接收到180 Ringing消息,软交换服务器给主叫方也发送180 Ringing消息,告知被叫已振铃,发送消息如下:(第一行可不关注,是笔者公司的底层打出的消息):
[16:15:59] ===SIPTransaction Send SIP message (455 bytes) to 192.168.2.161:9545
SIP
/2.0 180 Ringing
Via: SIP
/2.0/UDP 192.168.2.161:9545
From: "Administrator" <sip:17899998888@192.168.2.89>;tag=2dc6e1000081463ba14f7db4e50b8643;epid=d6b5434cef
To<sip:01062230001@192.168.2.89>;tag=-006773-7d10081ef45af150
Call
-ID: 31e72e80d5b04f52aba6cb8be8f3c0c0@192.168.2.161
CSeq: 
1 INVITE
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,
UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY,MESSAGE
Contact: 
<sip:192.168.2.89:14010>
Content
-Length: 0
      软交换服务器(192.168.2.89)接收到被叫的INVITE消息的200 OK消息,给主叫方也发送200 OK消息,消息参考如下:
SIP/2.0 200 OK
Via: SIP
/2.0/UDP 192.168.2.89:14010;branch=z9hG4bK--50c44f35
From<sip:17899998888@192.168.2.89>;tag=-002221-d749165cdfed2151
To<sip:01062230001@192.168.2.89>;tag=6b3e0000bf5c0000
Call
-ID: fdfa416f8779a8701af1086b07879a65@192.168.2.89
CSeq: 
1 INVITE
Contact: 
<sip:192.168.2.161:5060>
Content
-Type: application/sdp
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,
UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY,MESSAGE
Content
-Length: 118

v
=0
o
=- 1 1 IN IP4 192.168.2.161
s
=-
t
=0 0
m
=audio 19194 RTP/AVP 8
c
=IN IP4 192.168.2.161
a
=rtpmap:8 PCMA/8000
        3)签权INVITE消息实例

5、ACK消息
        1)头字段填写说明
        必选头域如下:
        Call-id
        Cseq
        From
        To
        Max-Forwords
        Via
        常用可选头域:
        Content-Length
        Content-Type
        Route
        2)消息实例
        在“4、INVITE消息”中讲到了主叫方接收到INVITE消息的200 消息后,接着给主叫方发送ACK消息,消息参考如下:
ACK sip:192.168.2.89:14010 SIP/2.0
Via: SIP
/2.0/UDP 192.168.2.161:9545
Max-Forwards: 70
From: "Administrator" <sip:17899998888@192.168.2.89>;tag=2dc6e1000081463ba14f7db4e50b8643;epid=d6b5434cef
To<sip:01062230001@192.168.2.89>;tag=-006773-7d10081ef45af150
Call
-ID: 31e72e80d5b04f52aba6cb8be8f3c0c0@192.168.2.161
CSeq: 
1 ACK
User-Agent: RTC/1.2
Content
-Length: 0

6、BYE消息
        1)头字段填写说明
        必选头域如下:
        Call-id
        Cseq
        From
        To
        Max-Forwards
        Via
        常用可选头域:
        Content-Length
        Content-Type
        Route
        Reason
        2)消息实例
        本实例笔者在本机(192.168.2.161)上注册了17899998888号码,呼叫01062230001号码时发送INVITE消息给服务器(192.168.2.89)的软交换,并与呼叫的号码建立通话后,主叫方主动挂断时,BYE消息如下所示:
BYE sip:192.168.2.89:14010 SIP/2.0
Via: SIP
/2.0/UDP 192.168.2.161:9545
Max-Forwards: 70
From: "Administrator" <sip:17899998888@192.168.2.89>;tag=2dc6e1000081463ba14f7db4e50b8643;epid=d6b5434cef
To<sip:01062230001@192.168.2.89>;tag=-006773-7d10081ef45af150
Call
-ID: 31e72e80d5b04f52aba6cb8be8f3c0c0@192.168.2.161
CSeq: 
2 BYE
User-Agent: RTC/1.2
Content
-Length: 0
      服务器发送200 OK消息,参考实例如下:
SIP/2.0 200 OK
Via: SIP
/2.0/UDP 192.168.2.161:9545
From: "Administrator" <sip:17899998888@192.168.2.89>;tag=2dc6e1000081463ba14f7db4e50b8643;epid=d6b5434cef
To<sip:01062230001@192.168.2.89>;tag=-006773-7d10081ef45af150
Call
-ID: 31e72e80d5b04f52aba6cb8be8f3c0c0@192.168.2.161
CSeq: 
2 BYE
Content
-Length: 0

7、PRACK消息
        1)头字段填写说明
        必选头域如下:
        Call-id
        Cseq
        From
        To
        Max-Forwards
        Via
        RAck
        常用可选头域:
        Content-Type
        Content-Length
        2)消息实例
        如下是PRACK消息的参考实例:
PRACK sip:192.168.2.154:5060 SIP/2.0
CSeq: 
2 PRACK
Call
-ID: 0112114b0ca1d73c3fbdc7036e4672c8@huawei.com
Contact: 
<sip:01055554444@192.168.2.46>
Content
-Length: 0
From<sip:01055554444@192.168.2.154>;tag=6c789654
To<sip:01062237400@192.168.2.154>;tag=0012-f1939f63004dbd16
Via: SIP
/2.0/UDP 192.168.2.46;branch=z9hG4bK04982ba62
User-Agent: Huawei-MC820/1.0.0
Supported: 100rel
RAck: 
1 1 INVITE

8、INFO消息
        1)头字段填写说明
        必选头域如下:
        Call-id
        Cseq
        From
        To
        Max-Forwards
        Via
        常用可选头域:
        Content-Type
        Content-Length
        Route
        2)消息实例
        在笔者开发过程中,媒体服务器与软交换服务器之间的使用的是INFO消息交互,如下消息为软交换服务器向媒体服务器发送的INFO消息(请求开始录音),参考如下:
INFO sip:192.168.2.89:14010 SIP/2.0
Call
-ID: 52f3d02182b72d37c48cea5dd013a401@192.168.2.89
From<sip:msml@minicc:5090>;tag=013913-74fa8415d2902b1c
To<sip:as@cintel.net.cn>;tag=-00708-b879297623d39362
CSeq: 
1 INFO
Via: SIP
/2.0/UDP 192.168.2.89:5090;branch=z9hG4bKf06b482d
Max-Forwards: 30
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,
UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY,MESSAGE
Contact: 
<sip:192.168.2.89:5090>
Content
-Type: application/msml+xml
Content
-Length: 164

<?xml version="1.0" encoding="US-ASCII"?>
<msml version="1.1">
<event name="app.startingRecord" id="conf:002221c6082350d233/dialog:PRLeg708">
</event>
</msml>
       如下是媒体服务器回送的200  OK消息,消息参考如下:
SIP/2.0 200 OK
Via: SIP
/2.0/UDP 192.168.2.89:5090;branch=z9hG4bKf06b482d
From<sip:msml@minicc:5090>;tag=013913-74fa8415d2902b1c
To<sip:as@cintel.net.cn>;tag=-00708-b879297623d39362
Call
-ID: 52f3d02182b72d37c48cea5dd013a401@192.168.2.89
CSeq: 
1 INFO
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,
UPDATE,PRACK,REFER,SUBSCRIBE,NOTIFY,MESSAGE
Contact: 
<sip:192.168.2.89:14010>
Content
-Length: 0

9、OPTIONS消息
        1)头字段填写说明
        必选头域如下:
        Call-id
        Cseq
        From
        To
        Max-Forwords
        Via
        常用可选头域:
        Accept
        Allow
        Supported
 
        2)消息实例
        参考实例如下所示:
OPTIONS sip:user@carrier.com SIP/2.0
Via: SIP
/2.0/UDP cavendish.kings.cambridge.edu.uk; branch=z0hG4bK1834
Max-Forwards: 70
To<sip:user@proxy.carrier.com>
From: J.C. Maxwell <sip:james.maxwell@kings.cambridge.edu.uk>; tag=34
Call
-ID: 9352812@cavendish.kings.cambridge.edu.uk
CSeq: 
1 OPTIONS
Content
-Length: 0

10、NOTIFY消息
     参考消息实例如下所示:
NOTIFY sip:tyoung@parlour.elasticity.co.uk SIP/2.0
Via SIP
/2.0/UDP cartouche.rosettastone.org:5060; branch=z9hG4bK3841323
Max-Forwards: 70
To: Thomas Young <sip:tyoung@elasticity.co.uk>; tag=1814
From<sip:ptolemy@rosettastone.org>; tag=5363956k
Call
-ID: 452k59252058dkfj34924lk34
CSeq: 
3 NOTIFY
Contact: 
<sip:Ptolemy@cartouche.rosettastone.org>
Event: dialog
Subscription
-State: active
Allow
-Event: dialog
Content
-Type: application/xml + dialog
Content
-Length: 消息体长度

(xml格式的消息体 )

11、REFER消息
     参考消息实例如下所示:
REFER sip:m.rejewski@biuroszyfrow.pl SIP/2.0"
Via SIP
/2.0/UDP lab34.bletchleypark.co.uk:5060; branch=z9hG4bK932039
Max-Forwards: 69
To<sip:m.rejewski@biuroszyfrow.pl>; tag=ACEBDC
From: Alan Turing <sip:turing@bletchleypark.co.uk>; tag=213424
Call
-ID: 3419fak3kFD23s1A9dkl
CSeq; 
5412 REFER
Refer
-To<sip:info@scherbius-ritter.com>
Content
-Length: 0
posted on 2010-11-10 11:23 阿蜜果 阅读(9233) 评论(0)  编辑  收藏 所属分类: 协议

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