3Com V7111 - VCX 4 Channels Analog FXO Media Gateway User Manual page 53

Using SIP Gateway Features
Table 16
Feature Parameter
Several Coders CoderName
In this mode, several codecs are sent in SDP
message. On receiving the remote response
(200 OK) with its SDP, a process of matching
coders is done between the local set of
coders (from the INI file) and the remote set.
The local coders are the preferred ones, and if
the first local coder is included in the remote
SDP response, then it is selected; otherwise,
next local coder is tested for match.
Automatic dialing IsDialNeeded
TargetOfChannel
This is used to perform automatic dialing once OFF HOOK is detected in FXS
Gateway or ringing is detected on FXO port. There is no need to dial in this mode.
For each channel, define destination phone number, using
TargetOfChannel<channel> = phone number definition.
One Stage IsTwoStageDial
Dialing,
IsUseFreeChannel
IP FXO calls
VCX V7111 FXO seizes the next available
FXO line, and dials the destination phone
number received in INVITE message. Use the
IsWaitForDialTone parameter to specify
whether the dialing comes after detection of
dial tone, or immediately after seizing the line.
The FXO Gateway releases the call if busy or
fast busy (reorder) tone is detected on the
FXO port.
3Com VCX V7111 VoIP SIP Gateways User Manual
Sheet of Excel Value
Utility
General List of coders
General 0
Automatic Phone
Dialing numbers to
dial
SIPgw 0
General 1
General
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