Header Field
To
Unsupported
User- Agent
Via
Voicemail
Warning
WWW- Authenticate
SDP Headers
The following SDP Headers are supported by the gateway.
SDP Headers
Table 107
SDP Header Element
v - Protocol version
o - Owner/ creator and session identifier
a - Attribute information
c - Connection information
d - Digit
m - Media name and transport address
s - Session information
t - Time alive header
b - Bandwidth header
u - Uri Description Header
e - Email Address header
i - Session Info Header
p - Phone number header
y - Year
400
Supported
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Supported
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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VCX V7111 VoIP Gateway User Guide