Dial Peer Commands for Implementing VoIP
Command Description
Gatekeeper(config-dial-peer)# This command enters dial-peer
dial-peer voice number voip configuration mode and will define a
remote VoIP dial peer.
The argument number is one or more digits
used to identify the dial peer. Valid entries
are from 1 to 2147483647.
The keyword voip specifies a dial peer that
uses voice encapsulation on the IP network.
Gatekeeper(config-dial-peer)# This command configures the dial peer’s
destination-pattern string [T] destination-pattern so the system can
resolve dialed digits with a telephone
number.
The argument string is a series of digits
used to specify the addressing is E.164, or
the private dialing plan telephone number.
Valid entries are the numbers 0 through 9
and the letters A through D.
Gatekeeper(config-dial-peer)# This command is used to define the IP
session target {ipv4: address of the router, which is connected
destination-address | to the remote telephony device.
dns:[$s$. | $d$. | $e$.|
$u$.] host-name}
www.syngress.com
Table 9.2 Continued
Continued
AVVID Dial Plans • Chapter 9 287
The keyword and argument ipv4:
destination-address indicate the IP address
of the remote router.
The keyword and argument dns:host-name
indicates that the domain name server will
resolve the name of the IP address. Valid
entries for this parameter are characters
representing the name of the host device.
Wildcards are also available for defining
domain names with the keyword by using
source, destination, and dialed information
in the host name.
Gatekeeper(config-dial-peer)# This command defines the CODEC for the
codec {g711alaw | g711ulaw | dial peer.
g723ar53 | g723ar63 | The optional switch bytes will set the
g723r53 | g723r63 | g726r16 | number of voice data bytes per frame.
g726r24 | g726r32 | g728 | Values are from 10 to 240 in increments
g729br8 | g729r8 [pre-ietf]} of 10 (for example, 10, 20, 30, and so on)
[ bytes] are considered acceptable. Any other value
is rounded down (for example, from 144 to
140).
The CODEC value must be matched on
both VoIP dial peers on either side of the
connection.
If you specify g729r8, then IETF bit-ordering
will be used.
Be aware that the CODEC command syntax
is platform- and release-specific.