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AMA-CUCM Troubleshooting: Best Practices for Reading Trace Files

After-Hours Call blocking on CME





This document covers the Configuration steps to Implement After-Hours Call blocking on Cisco Unified Communications Manager Express (CME). After-hours call blocking helps the user to block specific calls which are placed after the working hours.After-hours blocking can also be used to restrict calls to numbers/area codes known as fraudulent calling patterns.

What is After-Hours Call blocking and Why it is required ?

There have been may recorded incidents of business phone calls being placed After-hours, when staff has left for the evening. To prevent this you can implement After-hours call blocking on CME

After-Hours call blocking allows you to define ranges of times specified as After-hours intervals. User has an option to list number patterns that are not allowed during those intervals. If any user places a call during the After-hours time range that matches one of the defined patterns, CME will play a tone and disconnect the call.

After-hours call blocking has three major steps of configuration

Step1 : Define days and/or hours of the day that your company considers off-hours.

Step2 : Specify the patterns that you want to bock during the time specified as off-hours.

Step3 : Create exemptions to the policy, if needed.

Configure the After-Hours call blocking from telephony-service configuration mode.


There are some patterns that may be benificial to block all the time. Say 1-900 numbers are always high-cost and needs to be blocked at all the times. CME allows you to create a 24/7 non exemptible patterns that is disallowed at all the times using After-hours call blocking system.

After-Hours Configuration Examples

1. Configuring After-Hours call blocking for specific Time-Ranges

Configuration Example


CME_Router(Config) # telephony-service


CME_Router(Config-telephony)# after-hours day mon 18:00 8:00


! -- day - define day in week

! -- hh:mm - Time to start and stop


CME_Router(Config-telephony)# after-hours day mon 18:00 8:00

CME_Router(Config-telephony)# after-hours day tue 18:00 8:00

CME_Router(Config-telephony)# after-hours day wed 18:00 8:00

CME_Router(Config-telephony)# after-hours day thu 18:00 8:00

CME_Router(Config-telephony)# after-hours day fri 18:00 8:00


2. Configuring After-Hours call blocking for specific Date/Holiday

Configuration Example


Implementing After-hours call blocking for the entire day dec 25 (Christmas) and jan 1 (New year)


CME_Router(Config-telephony)# after-hours date dec 25 00:00 00:00

CME_Router(Config-telephony)# after-hours date jan 1 00:00 00:00


3. Configuring After-Hours Block Patterns


Configuration Example


Define the block patterns that CME should block during the After-Hours configured in Sample configuration - 1


CME_Router(Config) # telephony-service

CME_Router(Config-telephony)# after-hours block pattern 1 91........

CME_Router(Config-telephony)# after-hours block pattern 2 9011T


4. Block specific call patterns for 24/7

Configuration Example


CME_Router(Config-telephony)# after-hours block pattern 3 91900........ 7-24


! -- 7-24 block pattern works fof 7*24. This syntax tells the CME to block calls to this pattern at all the times


5. Configuring After-hours Exemption

Configuration Example


Configure ephone1 to exempt from the After-hours call blocking policy


CME_Router(Config)# ephone 1

CME_Router(Config)# after-hour exempt

CME_Router(Config)# exit

ephone 2 is configured with PIN to exempt from the After-hours call blocking policy


CME_Router(Config)# ephone 2

CME_Router(Config)# pin 5555

! -- pin - pin number can be any number between four-eight digits.


CME_Router(Config)# exit

CME_Router(Config)# telephony-service

CME_Router(Config-telephony)# login timeout 120 clear 23:00


Verifying Call Blocking Configuration

Step 1 Use the show running-config command to display an entire configuration, including call-blocking number patterns and time periods and the phones that are marked as exempt from call blocking.


fxo hook-flash

load 7960-7940 P00305000600

load 7914 S00103020002

max-ephones 100

max-dn 500

ip source-address port 2000

timeouts ringing 10

voicemail 7189

max-conferences 8 gain -6


web admin system name sys3 password sys3



transfer-system full-consult

transfer-pattern .T

secondary-dialtone 9

after-hours block pattern 1 91900 7-24

after-hours block pattern 2 9976 7-24

after-hours block pattern 3 9011 7-24

after-hours block pattern 4 91...976.... 7-24


create cnf-files version-stamp 7960 Jul 13 2004 03:39:28


Step 2 Use the show ephone login command to display the login status of all phones.

Router# show ephone login


ephone 1 Pin enabled:TRUE Logged-in:FALSE

ephone 2 Pin enabled:FALSE

ephone 3 Pin enabled:FALSE


Step 3 The show voice register dial-peer command displays all the dial peers created dynamically by SIP phones that have registered, along with configurations for after hours blocking.


Related Information



Where is the PIN Option for SIP Phones?

I can't see anything under:

voice register dn  1

voice register pool  1


PIN does not display in CME 8.6 
but i can see in CME 11.0

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