About CME

Introduction

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.

Note:-

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.

telephony-service

fxo hook-flash

load 7960-7940 P00305000600

load 7914 S00103020002

max-ephones 100

max-dn 500

ip source-address 10.115.43.121 port 2000

timeouts ringing 10

voicemail 7189

max-conferences 8 gain -6

moh music-on-hold.au

web admin system name sys3 password sys3

dn-webedit

time-webedit

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.