User's Manual 404 Document #: LTRT-10632
Mediant 800B Gateway & E-SBC
• The method type is "REGISTER".
• Using SIP protocol "sip".
• Proxy IP from ini file is "10.2.2.222".
• The equation to be evaluated is "REGISTER:sip:10.2.2.222".
• The MD5 algorithm is run on this equation and stored for future usage.
• The result is "a9a031cfddcb10d91c8e7b4926086f7e".
6. Final stage:
• A1 result: The nonce from the proxy response is
"11432d6bce58ddf02e3b5e1c77c010d2".
• A2 result: The equation to be evaluated is
"A1:11432d6bce58ddf02e3b5e1c77c010d2:A2".
• The MD5 algorithm is run on this equation. The outcome of the calculation is the
response needed by the device to register with the Proxy.
• The response is "b9c45d0234a5abf5ddf5c704029b38cf".
At this time, a new REGISTER request is issued with the following response:
REGISTER sip:10.2.2.222 SIP/2.0
Via: SIP/2.0/UDP 10.1.1.200
From: <sip: 122@10.1.1.200>;tag=1c23940
To: <sip: 122@10.1.1.200>
Call-ID: 654982194@10.1.1.200
Server: Audiocodes-Sip-Gateway/Mediant 800B Gateway and E-
SBC/v.7.20A.000.038
CSeq: 1 REGISTER
Contact: sip:122@10.1.1.200:
Expires:3600
Authorization: Digest, username: 122,
realm="audiocodes.com”,
nonce="11432d6bce58ddf02e3b5e1c77c010d2",
uri=”10.2.2.222”,
response=“b9c45d0234a5abf5ddf5c704029b38cf”
7. Upon receiving this request and if accepted by the Proxy, the Proxy returns a 200 OK
response, completing the registration transaction:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.1.1.200
From: <sip: 122@10.1.1.200>;tag=1c23940
To: <sip: 122@10.1.1.200>
Call-ID: 654982194@10.1.1.200
Cseq: 1 REGISTER
Date: Thu, 26 Jul 2012 09:34:42 GMT
Server: Columbia-SIP-Server/1.17
Content-Length: 0
Contact: <sip:122@10.1.1.200>; expires="Thu, 26 Jul 2012
10:34:42 GMT"; action=proxy; q=1.00
Contact: <122@10.1.1.200:>; expires="Tue, 19 Jan 2038 03:14:07
GMT"; action=proxy; q=0.00
Expires: Thu, 26 Jul 2012 10:34:42 GMT
18.3 Configuring Call Setup Rules
The Call Setup Rules table lets you configure up to 40 Call Setup rules. Call Setup rules
define various sequences that are run upon the receipt of an incoming call (dialog) at call
setup, before the device routes the call to its destination. Call Setup rules can be
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