Configuring Secure SRST for SCCP and SIP
How to Configure Secure Unified SRST
207
Cisco Unified SCCP and SIP SRST System Administrator Guide
OL-13143-04
Examples
The following example enables SRST mode on your router:
Router(config)#
call-manager-fallback
Router(config-cm-fallback)#
secondary-dialtone 9
Router(config-cm-fallback)#
transfer-system full-consult
Router(config-cm-fallback)#
ip source-address 10.1.1.22 port 2000
Router(config-cm-fallback)#
max-ephones 15
Router(config-cm-fallback)#
max-dn 30
Router(config-cm-fallback)#
transfer-pattern .....
Router(config-cm-fallback)#
exit
Configuring Secure SCCP SRST
•
Prerequisites for Configuring Secure SCCP SRST, page 208
•
Restrictions for Configuring Secure SCCP SRST, page 208
•
Verifying Phone Status and Registrations, page 208
(required)
•
Configuration Examples for Secure SCCP SRST, page 215
Step 4
ip source-address
ip-address
[
port
port
]
Example:
Router(config-cm-fallback)# ip source-address
10.1.1.22 port 2000
Enables the router to receive messages from the Cisco IP
Phones through the specified IP addresses and provides
for strict IP address verification. The default port number
is 2000.
Step 5
max-ephones
max-phones
Example:
Router(config-cm-fallback)# max-ephones 15
Configures the maximum number of Cisco IP phones
that can be supported by the router. The maximum
number is platform dependent. The default is 0. See the
“Platform and Memory Support” section on page 24
for
further details.
Step 6
max-dn
max-directory-numbers
Example:
Router(config-cm-fallback)# max-dn 30
Sets the maximum number of directory numbers (DNs)
or virtual voice ports that can be supported by the router.
•
max-directory-numbers:
Maximum number of
directory numbers or virtual voice ports supported
by the router. The maximum number is platform
dependent. The default is 0. See the
“Platform and
Memory Support” section on page 24
for further
details.
Step 7
transfer-pattern
transfer-pattern
Example:
Router(config-cm-fallback)# transfer-pattern
.....
Allows transfer of telephone calls by Cisco Unified IP
Phones to specified phone number patterns.
•
transfer-pattern
: String of digits for permitted call
transfers. Wildcards are allowed.
Step 8
exit
Example:
Router(config-cm-fallback)# exit
Exits call-manager-fallback configuration mode.
Command or Action
Purpose
