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V7122 GatewayUser Guide
F5 10.8.201.108 ==> 10.8.201.10 ACK
ACK sip:[email protected];user=phone SIP/2.0
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacZYpJWxZ
From: <sip:[email protected]>;tag=1c5354
To: <sip:[email protected]>;tag=1c7345
Call-ID: [email protected]
User-Agent: 3Com-Sip-Gateway/MP-108 FXS/v.4.20.299.410
CSeq: 18153 ACK
Supported: 100rel,em
Content-Length: 0
Phone ‘8000’ goes on-hook; gateway 10.8.201.108 sends BYE to gateway
10.8.201.10. Voice path is established.
F6 10.8.201.108 ==> 10.8.201.10 BYE
BYE sip:[email protected];user=phone SIP/2.0
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacRKCVBud
From: <sip:[email protected]>;tag=1c5354
To: <sip:[email protected]>;tag=1c7345
Call-ID: [email protected]
User-Agent: 3Com-Sip-Gateway/MP-108 FXS/v.4.20.299.410
CSeq: 18154 BYE
Supported: 100rel,em
Content-Length: 0F7
10.2.37.10 ==> 10.2.37.20 200 OK
F7 10.8.201.10 ==> 10.8.201.108 200 OK
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacRKCVBud
From: <sip:[email protected]>;tag=1c5354
To: <sip:[email protected]>;tag=1c7345
Call-ID: [email protected]
Server: 3Com-Sip-Gateway/TrunkPack 1610/v.4.20.299.412
CSeq: 18154 BYE
Supported: 100rel,em
Content-Length: 0
SIP Authentication Example
V7122 gateway supports basic and digest authentication types, according to SIP RFC 3261
standard. A proxy server might require authentication before forwarding an INVITE message.
A Registrar/Proxy server may also require authentication for client registration. A proxy
replies to an unauthenticated INVITE with a 407 Proxy Authorization Required response,
containing a Proxy-Authenticate header with the form of the challenge. After sending an ACK
for the 407, the user agent can then resend the INVITE with a Proxy-Authorization header
containing the credentials.
User agent, Redirect or Registrar servers typically use 401 Unauthorized responses to
challenge authentication containing a WWW-Authenticate header, and expect the re-INVITE
to contain an Authorization header.
The following example describes the Digest Authentication procedure including computation
of user agent credentials.
The REGISTER request is sent to Registrar/Proxy server for registration, as follows:
REGISTER sip:10.2.2.222 SIP/2.0
Summary of Contents for VCX V7122
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