Trunk To Trunk Routing - Optional; Trunk To Trunk Transfer; External Call Forward -Cos; Trunk To Trunk Options - NEC SL1100 Adminstrators Manual

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8.6

Trunk to Trunk Routing - Optional

Trunks > Trunk to Trunk Routing
There are several settings under the Trunk to Trunk Routing section of the configuration that you may
choose to set for trunk to trunk forwarding and transfer to work as required.
Where the SL1100/SV8100 has been connected to an ISDN previously these will likely have be
configured.
When trunk to trunk forwarding is enabled access to the setting of this functionality for users should
be restricted where possible as unauthorised configuration of these settings creates a potential
security vulnerability on any PBX system.

Trunk to Trunk Transfer

Enable the Trunk to Trunk transfer settings for all required trunks.

External Call Forward -COS

Enable the Call Forward Off-premise setting for the required COS.

Trunk to Trunk Options

If you have enabled Trunk to Trunk transfer previously change the settings for warning tone and
disconnect time to meet your requirements.
You may wish to configure a Conversation Continue Code to increase the security of transferred calls.
Issue 1: 2012© British Telecommunications plc
Page 28 of 33
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