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Configuring Destination-Pattern Options

This topic describes destination-pattern options and the applicable shortcuts.

Cisco Public

IP Telephony

Common Destination-Pattern Options

The destination pattern associates a telephone number with a given dial peer. The destination

pattern also determines the dialed digits that the router collects and forwards to the remote

telephony interface, such as a PBX, Cisco CallManager, or the PSTN. You must configure a

destination pattern for each POTS and VoIP dial peer that you define on the router.

The destination pattern can indicate a complete telephone number, a partial telephone number

with wildcard digits, or it can point to a range of numbers defined in a variety of ways.

Destination-pattern options include the following:

 Plus sign (+): An optional character that indicates an E.164 standard number. E.164 is the

International Telecommunication Union Telecommunication Standardization Sector (ITU-

T) recommendation for the international public telecommunication numbering plan. The

plus sign in front of a destination-pattern string specifies that the string must conform to

E.164.

 string: A series of digits specifying the E.164 or private dial-plan telephone number. The

examples below show the use of special characters that are often found in destination

pattern strings:

— An asterisk (*) and pound sign (#) appear on standard touch-tone dial pads. These

characters may need to be used when passing a call to an automated application that

requires these characters to signal the use of a special feature. For example, when

calling an interactive voice response (IVR) system that requires a code for access,

the number dialed might be “5551212888#”, which would initially dial the

telephone number “5551212” and input a code of “888” followed by the pound key

to terminate the IVR input query.

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Cisco GRP Bedienungsanleitung Seite 11