AudioCodes MP-100 User Manual

MP-1xx SIP User’s Manual 8. Gateway Capabilities Description
Version 4.4 163 March 2005
F5 10.8.201.161 ==> 10.8.201.158 BYE
BYE sip:2000@10.8.201.158;user=phone;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.8.201.161;branch=z9hG4bKacLBzZgmA
From: <sip:6000@10.8.201.161>;tag=1c29715
To: <sip:2000@10.8.201.158>;tag=1c3535
Call-ID: 2123353775377NrpL-2000--6000@10.8.201.158
User-Agent: Audiocodes-Sip-Gateway/MP-108 FXS/v.4.20.299.410
CSeq: 34541 BYE
Supported: 100rel,em
Content-Length: 0
F6 10.8.201.158 ==> 10.8.201.161 200 OK
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.8.201.161;branch=z9hG4bKacLBzZgmA
From: <sip:6000@10.8.201.161>;tag=1c29715
To: <sip:2000@10.8.201.158>;tag=1c3535
Call-ID: 2123353775377NrpL-2000--6000@10.8.201.158
Server: Audiocodes-Sip-Gateway/MP-108 FXS/v.4.20.299.410
CSeq: 34541 BYE
Supported: 100rel,em
Content-Length: 0
8.9.3 SIP Authentication Example
MP-108 gateway supports basic and digest (MD5) 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 response 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
Via: SIP/2.0/UDP 10.1.1.200
From: <sip: 122@10.1.1.200>;tag=1c17940
To: <sip: 122@10.1.1.200>
Call-ID: 634293194@10.1.1.200
User-Agent: Audiocodes-Sip-Gateway/MP-108 FXS/v.4.20.299.410
CSeq: 1 REGISTER
Contact: sip:122@10.1.1.200:
Expires:3600
On receiving this request the Registrar/Proxy returns 401 Unauthorized response.
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.2.1.200
From: <sip:122@10.2.2.222 >;tag=1c17940
To: <sip:122@10.2.2.222 >
Call-ID: 634293194@10.1.1.200
Cseq: 1 REGISTER
Date: Mon, 30 Jul 2001 15:33:54 GMT
Server: Columbia-SIP-Server/1.17
Content-Length: 0

AudioCodes MP-100 Specifications

General

Brand	AudioCodes
Model	MP-100
Category	Gateway
Language	English