Maintaining a CM Express System CCNP Training Institute in Gurgaon

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An IP Phone system needs regular attention to watch for unusual events or unhealthy trends. Day-to-day operations and

maintenance tasks include the following:

•

Updating files on the router

•

Configuring syslog logging

•

Billing procedures

•

The next sections discuss these topics and configurations.

Managing Call Detail Records (CDRs)

Managing Router Files

The CM Express router will need routine updates applied to improve reliability, add features, or enhance security.

Whether the files are upgrades to the Cisco IOS, the Communication Manager Express application or GUI, phone

firmware or MOH files, the command to load them into the router is the familiar copy tftp flash syntax. (The TFTP

server must be active and accessible over the network, of course.) FTP is also supported if file sizes greater than 32 MB

are to be moved; a suitable account and password must be configured for FTP transfers.

CM Express software is available as a bundled, single .zip file containing all the files needed to run CM Express, including

the GUI. This single file can be extracted on the TFTP/FTP server and the files downloaded to the router Flash

memory.

© 2008 Cisco Systems Inc. All rights reserved. This publication is protected by copyright.

Please see page 147 for more details.

SYSLOG and SNMP MIB Support

CM Express supports type 6 Syslog messages for IP Phone registration. After a Syslog server is configured using the

logging

generated by the router, using the Syslog viewer of your choice. The following are the Syslog messages provided for IP

Phone registration events:

ip_address command and is available on the network, these messages can be viewed along with other messages

•

%IPPHONE-6-REG_ALARM

•

%IPPHONE-6-REGISTER

•

%IPPHONE-6-REGISTER_NEW

•

%IPPHONE-6-UNREGISTER_ABNORMAL

•

SNMP allows network system administrators to monitor changes and events by way of messages sent to a monitoring

application. CM Express support for SNMP MIBs specific to IP telephony activities and events includes the following

three MIBs:

%IPPHONE-6-UNREGISTER_NORMAL

•

Cisco-DIAL-CONTROL-MIB (CDR and call history)

•

Cisco-VOICE-CONTROL-MIB (extends to telephony and VoIP dial peers and call legs)

•

These MIBs, along with CDR data, allow visibility into detailed information about both summary and specific call information.

Cisco-VOICE-IF-MIB

© 2008 Cisco Systems Inc. All rights reserved. This publication is protected by copyright.

Please see page 147 for more details.

Billing Support

Billing support is provided by way of CDR records and H.323 start/stop time AAA messages to the syslog server or

billing application. If the user enters an account code using the Acct softkey during call setup or when the call is

connected, the account code is recorded in the CDR and added to the Cisco-VOICE-DIAL-CONTROL-MIB. The account

code can then be accessed by a billing application to determine how long a user was on the phone with each customer,

and billed accordingly.

Call Detail Records

Call Detail Records (CDR) are created by default and recorded in memory for later review and analysis using either the

CLI or GUI. CDRs can optionally be sent to the Syslog server.