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V7122 GatewayUser Guide
‘REGISTER:sip:10.2.2.222’.
The MD5 algorithm is run on this equation and stored for future usage.
The result is:’a9a031cfddcb10d91c8e7b4926086f7e’
The final stage:
The A1 result
The nonce from the proxy response: ‘11432d6bce58ddf02e3b5e1c77c010d2’
The A2 result
The equation to be evaluated:
‘A1:11432d6bce58ddf02e3b5e1c77c010d2:A2’.
The MD5 algorithm is run on this equation. The outcome of the calculation is the response
needed by the gateway to be able to register with the Proxy.
The response is: ‘b9c45d0234a5abf5ddf5c704029b38cf’
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]
Server: 3Com-Sip-Gateway/TrunkPack 1610/v.4.20.299.412
CSeq: 1 REGISTER
Contact: sip:[email protected]:
Expires:3600
Authorization: Digest, Username: MP108-3Com,
realm="3Com.com”,
nonce="11432d6bce58ddf02e3b5e1c77c010d2",
uri=”10.2.2.222”,
response=“ b9c45d0234a5abf5ddf5c704029b38cf”
Summary of Contents for VCX V7122
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