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<December, 2006>
3725-17471-001/A
Technical Bulletin 11572
Changes to Local Digit Maps on SoundPoint
®
IP Phones
This technical bulletin provides detailed information on how to modify the
configuration files to automate the setup phase of number-only calls.
This information applies to SoundPoint IP phones running SIP application
version 2.1 or later.
Introduction
Enhancements have been made to this feature that can eliminate the need for
using the Dial or Send soft key when making outgoing calls. For example, it
can match the behavior of removing the 9 or 0 from a string of dialed digits or
adding the area code before dialed digits when a switch to 10 digit phone
numbers occurs.
As soon as a digit pattern matching the digit map is found, the call setup
process will complete automatically. The configuration syntax is the same as
that specified in 2.1.5 of RFC 3435. The phone’s behavior when the user dials
digits that do not match the digit map is configurable. It is also possible to strip
a trailing ‘#’ from the digits sent, prepend a ‘+’ to digits, or to replace certain
matched digits with the introduction of ‘R’ to the digit map.
Configuration File Changes
If a single dial plan is used for the entire company, the dial plan is best
specified in the application configuration file (sip.cfg). You can also create
multiple dial plans and specify which phones are to use which in the
phone-specific configuration file (phone1.cfg).
Configuration changes can performed centrally at the boot server or locally:
Central
(boot server)
Configuration file:
sip.cfg
Specify impossible match behavior, trailing # behavior,
digit map matching strings, and time out value.
• For more information, refer to Dial Plan in Application
Configuration File on page 2.
Configuration file:
phone1.cfg
Specify per-registration impossible match behavior,
trailing # behavior, digit map matching strings, and time
out values that override those in sip.cfg.
• For more information, refer to Dial Plan in Per-Phone
Configuration File on page 4.