Configuring Call Handling
How to Configure Cisco Unified SCCP SRST
158
Cisco Unified SCCP and SIP SRST System Administrator Guide
OL-13143-04
SUMMARY STEPS
1.
call-manager-fallback
2.
timeouts interdigit
seconds
3.
exit
DETAILED STEPS
Examples
The following example sets the interdigit timeout value to 5 seconds for all Cisco Unified IP Phones. In
this example, 5 seconds are the elapsed time after which an incompletely dialed number times out. For
example, a caller who dials nine digits (408555010) instead of the required ten digits (4085550100) will
hear a busy tone after the second timeout elapses.
call-manager-fallback
timeouts interdigit 5
Configuring Class of Restriction
The class of restriction (COR) functionality provides the ability to deny certain call attempts on the basis
of the incoming and outgoing class of restrictions provisioned on the dial peers. This functionality
provides flexibility in network design, allows users to block calls (for example, calls to 900 numbers),
and applies different restrictions to call attempts from different originators. The
cor
command sets the
dial-peer COR parameter for dial peers associated with the directory numbers created during
Cisco Unified CM fallback.
You can have up to 20 COR lists for each incoming and outgoing call. A default COR is assigned to
directory numbers that do not match any COR list numbers or number ranges. An assigned COR is
invoked for the dial peers and created for each directory number automatically during Communications
Manager fallback registration.
If a COR is applied on an incoming dial peer (for incoming calls) and it is a superset of or is equal to the
COR applied to the outgoing dial peer (for outgoing calls), the call will go through. Voice ports
determine whether a call is considered incoming or outgoing. If you hook up a phone to an FXS port on
Command or Action
Purpose
Step 1
call-manager-fallback
Example:
Router(config)# call-manager-fallback
Enters call-manager-fallback configuration mode.
Step 2
timeouts interdigit
seconds
Example:
Router(config-cm-fallback)# timeouts interdigit
5
(Optional) Configures the interdigit timeout value for all
Cisco IP phones that are attached to the router.
•
seconds
: Interdigit timeout duration, in seconds, for all
Cisco Unified IP Phones. Valid entries are integers
from 2 to 120.
Step 3
exit
Example:
Router(config-cm-fallback)# exit
Exits call-manager-fallback configuration mode.
