Cisco ISDN GW 3241 Bedienungsanleitung PDF herunterladen (Seite 64)

Using a gatekeeper

Service and dial plan prefixes

Service prefixes (MCU and IP VCR) and dial plan prefixes (ISDN Gateway) have the same purpose. They

enable you to specify a prefix which is registered with the gatekeeper. Any calls to numbers beginning with

that prefix are routed to the Codian unit. See the online help topic “Displaying gatekeeper settings” (MCU

and IP VCR) or “Making calls to the ISDN gateway” (ISDN gateway).

Point-to-point call prefixes (IP VCR)

If you want to use a point-to-point call on an IP VCR you must specify an incoming prefix for these calls.

See the online help topic “Displaying gatekeeper settings”. The outgoing prefix is optional. When making

point-to-point calls through the IP VCR, the incoming prefix is stripped from the dialed number and the

outgoing prefix added (if it exists) before the outgoing part of the call is attempted.

MCU Registrations, Prefixes and Conference IDs

This section explains the way the MCU behaves in the areas of conference gatekeeper registrations,

conference IDs, and the connection of incoming calls to conferences based on called party number,

including how it is affected by the Prefix for MCU registrations and the MCU Service Prefix fields

in the Gatekeeper Settings page.

Conference Creation

This section provides the resulting conference ID, gatekeeper registration, and SIP registration depending

on the way a conference is created.

In the following:

 SP: the MCU Service Prefix

 LP: the locally applied Prefix for MCU registrations

For scheduled conferences created via the web interface:

 The conference ID is as specified by the user

 The gatekeeper registered directory number (E.164 number) is LP + conference ID

For ad hoc conference created using the auto-attendant:

 The conference ID is as specified by the user

 The gatekeeper registered directory number (E.164 number) is LP +conference ID

For ad hoc conference created by dialing in to unrecognized E.164 number:

 The conference ID is the dialed number, after stripping the SP if it begins with it

 The gatekeeper registered directory number (E.164 number) is the dialed number (with nothing

stripped)

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Cisco ISDN GW 3241 Bedienungsanleitung Seite 64