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3Com VCX V7122/SIP VoIP Gateway User Manual
The equation to be evaluated: (according to RFC this part is called A1): VCX V7111
8FXS-3Com:3Com.com:3Com
The MD5 algorithm is run on this equation and stored for future usage
The result is a8f17d4b41ab8dab6c95d3c14e34a9e1
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Next we need to evaluate the par called A2. We use:
The method type REGISTER
Using SIP protocol sip
Proxy IP from the INI file 10.2.2.222
The equation to be evaluated: REGISTER:sip:10.2.2.222. The MD5 algorithm is run on
this equation and stored for future usage. The result is:
a9a031cfddcb10d91c8e7b4926086f7e.
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The final stage, we use:
The A1 result
The nonce from the proxy response: 11432d6bce58ddf02e3b5e1c77c010d2
The A2 result
The equation to be evaluated: A1:11432d6bce58ddf02e3b5e1c77c010d2:A2
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The MD5 algorithm is run on this equation. The outcome of the calculation is the
response needed by the Gateway to be able top register with the proxy. The response is:
b9c45d0234a5abf5ddf5c704029b38cf.
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At this time, a new REGISTER request is issued with the response:
REGISTER sip:10.2.2.222 SIP/2.0
Via: SIP/2.0/UDP 10.1.1.200
From: <sip: [email protected]>;tag=1c23940
To: <sip: [email protected]>
Call-ID: [email protected]
CSeq: 1 REGISTER
Contact: sip:[email protected]:
Expires:3600
Authorization: Digest, Username: VCX V71118FXS-3Com,
realm="3com.com”,
nonce="11432d6bce58ddf02e3b5e1c77c010d2",
uri=”10.2.2.222”,
response=“ b9c45d0234a5abf5ddf5c704029b38cf”
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On receiving this request, if accepted by the proxy, the proxy returns a 200 OK response
closing the REGISTER transaction.
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.1.1.200
From: <sip: [email protected]>;tag=1c23940
To: <sip: [email protected]>
Call-ID: [email protected]
Cseq: 1 REGISTER
Date: Thu, 26 Jul 2001 09:34:42 GMT
Server: Columbia-SIP-Server/1.17
Content-Length: 0
Contact: <sip:[email protected]>; expires="Thu, 26 Jul 2001 10:34:42 GMT";
action=proxy; q=1.00
Содержание VCX V7122 SIP
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Страница 88: ...88 3Com VCX V7122 SIP VoIP Gateway User Manual General Data Sheet Figure 24 General Data Sheet ...
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