Nortel VoIP Gateway, Configuration Manual

Page: 36 / 220

36 Configuring the Protocol Definition parameters
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Open Media On Connect Select No to open the voice channel after sending an Alert message.
Select Yes to open the voice channel after the call is answered and a Connect message is
sent.
The default value is No.
Note: This option is only relevant if you use Fast Start or Tunneling.
Recommendations:
If there are any Business Communications Manager or Meridian 1 IPT gateways on your
VoIP network, set this parameter to No.
Number Manipulation and Routing Modes
Add Trunk Group ID as
Prefix Select No if you do not want the VoIP Gateway to add the Trunk Group ID
Select Yes if you want to add the Hunt Group ID as a prefix to the destination phone
number for incoming calls. This option can be used to define various routing rules.
To use this feature you must configure the Hunt Group IDs.
Recommendations:
We recommend you set this parameter to No.
IP to Tel Routing Mode Select Route calls before manipulation if you want to route the calls before the number
manipulation rules are applied.
Select Route calls after manipulation if you want to route the calls after the number
manipulation rules are applied.
The option is not applicable if you use a Gatekeeper.
The default is Route calls before manipulation.
Recommendations:
We recommend you set this parameter to Route calls before manipulation.
Tel to IP Routing Mode Select Route calls before manipulation if you want to route the calls before the number
manipulation rules are applied.
Select Route calls after manipulation if you want to route the calls after the number
manipulation rules are applied.
The option is not applicable if you use a Gatekeeper.
The default is Route calls before manipulation.
Recommendations:
We recommend you set this parameter to Route calls before manipulation.
H450 Supplementary Services
Enable Hold Select No to disable Hold service.
Select Yes to enable Hold service (H.450.4).
If the Hold service is enabled, a user can activate Hold (or unhold) using the HookFlash.
On receiving a Hold request, the remote party will be put on hold and hear the hold tone.
The default is No.
Note: To use the H.450 Supplementary Services, the gateways at both ends must support
these services.
Recommendations:
The Business Communications Manager and Meridian 1 IPT gateways do not support
H.450 Supplementary Services. If there are any Business Communications Manager or
Meridian 1 IPT gateways on your VoIP network, set this parameter to No.
Table 4 Protocol Definition parameters (Continued)
Parameter Description