Product specifications

Administrator's Manual A. Product Specifications
Version 2.0.1 89 May 2013
A.1.1.2 SIP Headers
The device supports the following SIP headers:
Table A-4: Supported SIP Headers
Header Field
Supported
Accept
Yes
Alert-Info
Yes
Allow
Yes
Authorization
Yes
Call-ID
Yes
Call-Info
Yes
Contact
Yes
Content-Length
Yes
Content-Type
Yes
Cseq
Yes
Date
Yes
Diversion
Yes
Encryption
No
Expires
Yes
Fax
Yes
From
Yes
History-Info
Yes
Join
Yes
Max-Forwards
Yes
MIN-SE
Yes
P-Asserted-Identity
Yes
P-Preferred-Identity
Yes
Proxy- Authenticate
Yes
Proxy- Authorization
Yes
Prack
Yes
Record- Route
Yes
Refer-To
Yes
Referred-By
Yes
Replaces
Yes
Remote-Party-ID
Yes
Retry-After
Yes
Route
Yes