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Cisco IOS Voice, Video, and Fax Commands: R Through Sh
register e164
VR-562
Cisco IOS Voice, Video, Fax Command Reference
register e164
To configure a gateway to register or deregister (remove the registration for) a fully qualified plain old
telephone service (POTS) dial-peer E.164 address with a gatekeeper, use the register e164 command in
dial-peer configuration mode. To deregister an E.164 address, use the no form of this command.
register e164
no register e164
Syntax Description This command has no keywords or arguments.
Defaults No E.164 addresses are registered until you enter this command.
Command Modes Dial-peer configuration
Command History
Usage Guidelines Use this command to register the E.164 address of an analog telephone line attached to a Foreign
Exchange Station (FXS) port on a router. The gateway automatically registers fully qualified E164
addresses. Use the no register e164 command to deregister an address. Use the register e164 command
to register a deregistered address.
Before you automatically or manually register an E.164 address with a gatekeeper, you must create a dial
peer (using the dial-peer command), assign an FXS port to the peer (using the port command), and
assign an E.164 address (using the destination-pattern command). The E.164 address must be a fully
qualified address. For example, +5551212, 5551212, and 4085551212 are fully qualified addresses;
408555.... is not a fully qualified address. E.164 addresses are registered only for active
interfaces—those that are not shut down. If an FXS port or its interface is shut down, the corresponding
E.164 address is deregistered.
Tips You can use the show gateway command to find out if the gateway is connected to a gatekeeper and
if a fully qualified E.164 address is assigned to the gateway. Use the zone-prefix command at the
gatekeeper to define prefix patterns, such as 408555...., that apply to one or more gateways.
Examples The following command sequence places the gateway in dial-peer configuration mode, assigns an E.164
address to the interface, and registers that address with the gatekeeper:
dial-peer voice 111 pots
port 1/0/0
destination-pattern 5551212
register e164
Release Modification
12.0(5)T This command was introduced on the Cisco AS5300 universal access server.