Sip Authentication Example - AudioCodes Mediant 800 MSBG User Manual

SIP User's Manual
F5 ACK (10.8.201.108 >> 10.8.201.10):
ACK sip:2000@10.8.201.161;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacZYpJWxZ
From: <sip:6000@10.8.201.108>;tag=1c5354
To: <sip:2000@10.8.201.161>;tag=1c7345
Call-ID: 534366556655skKw-6000--2000@10.8.201.108
User-Agent: Audiocodes-Sip-Gateway/Mediant 800 MSBG/v.6.00.010.006
CSeq: 18153 ACK
Supported: 100rel,em
Content-Length: 0
Note:
F6 BYE (10.8.201.108 >> 10.8.201.10):
BYE sip:2000@10.8.201.161;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacRKCVBud
From: <sip:6000@10.8.201.108>;tag=1c5354
To: <sip:2000@10.8.201.161>;tag=1c7345
Call-ID: 534366556655skKw-6000--2000@10.8.201.108
User-Agent: Audiocodes-Sip-Gateway/Mediant 800 MSBG/v.6.00.010.006
CSeq: 18154 BYE
Supported: 100rel,em
Content-Length: 0
F7 OK 200 (10.8.201.10 >> 10.8.201.108):
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.8.201.108;branch=z9hG4bKacRKCVBud
From: <sip:6000@10.8.201.108>;tag=1c5354
To: <sip:2000@10.8.201.161>;tag=1c7345
Call-ID: 534366556655skKw-6000--2000@10.8.201.108
Server: Audiocodes-Sip-Gateway/Mediant 800 MSBG/v.6.00.010.006
CSeq: 18154 BYE
Supported: 100rel,em
Content-Length: 0
8.3.9.2

SIP Authentication Example

The device 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 re-send the INVITE with a Proxy-
Authorization header containing the credentials.
User agents, 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.
Version 6.2
Phone '6000' goes on-hook and device 10.8.201.108 sends a BYE to device
10.8.201.161. A voice path is established.
471
8. IP Telephony Capabilities
February 2011