Specifications
Configuring Cisco Unified SIP SRST Features Using Back-to-Back User Agent Mode (for Version 3.4 and Version 4.0
How to Configure Cisco Unified SIP SRST
58
Cisco Unified SIP SRST 4.0 System Administrator Guide
Examples
The following example defines several patterns of digits for which outgoing calls are blocked. Patterns 1
and 2, which block calls to external numbers that begin with 1 and 011, are blocked on Monday through
Friday before 7 a.m. and after 7 p.m. Pattern 3 blocks calls to 900 numbers 7 days a week, 24 hours a day.
call-manager-fallback
after-hours block pattern 1 91
after-hours block pattern 2 9011
after-hours block pattern 3 91900 7-24
after-hours day mon 19:00 07:00
after-hours day tue 19:00 07:00
after-hours day wed 19:00 07:00
after-hours day thu 19:00 07:00
after-hours day fri 19:00 07:00
The following example exempts a Cisco SIP phone pool from the configured blocking criteria:
voice register pool 1
after-hour exempt
Verification
To verify the feature’s configuration, enter one of the following commands:
• show voice register dial-peer—Displays all the dial peers created dynamically by phones that have
registered. This command also displays configurations for after hours blocking and call forwarding.
• show voice register pool <tag>—Displays information regarding a specific pool.
• debug ccsip message—Debugs basic B2BUA calls.
SIP Call Hold and Resume
Cisco Unified SRST supports the ability for SIP phones to place calls on hold and to resume from calls
placed on hold. This also includes support for a consultative hold where A calls B, B places A on hold,
B calls C, and B disconnects from C and then resumes with A. Support for call hold is signaled by SIP
phones using “re-INVITE c=0.0.0.0” and also by the receive-only mechanism.
No configuration is necessary.
Step 9
after-hour exempt
Example:
Router(config-register-pool)# after-hour exempt
Specifies that for a particular voice register pool, none its
outgoing calls are blocked even though call blocking is
enabled.
Step 10
end
Example:
Router(config-register-pool)# end
Returns to privileged EXEC mode.
Command or Action Purpose