SRST

LCD Message Formatting

In this blog, we will continue discussing more configuration options available in Survivable Remote Site Telephony (SRST). All of the configuration command examples in this blog are configured in call-manager-fallback configuration mode.

I will assume the organization is using network time protocol (NTP) on their Cisco routers so we will not cover the configuration of time on the Cisco router. The date-format command defaults to mm-dd-yy (Month-Day-Year), but can be changed to dd-mm-yy (Day-Month-Year) for deployments outside of the United States. The time format also defaults to 12 hour time, but 24 hour time is used in most International deployments. Amsterdam would have their configuration set with the following information:

Date-format dd-mm-yy
Time-format 24

The user-locale command controls the language displayed on the LCD of the Cisco IP phone. Most configuration options on the Cisco router default to options that would be leveraged for a United States based telephony deployment, but can be changed. The user-locale is configured by the ISO 3166 standard two letter country code. The configuration for Amsterdam would be configured to NL (Netherlands) as shown below:

User-locale NL

The system message command is used to change the default LCD message of the phone when the phone is registered to the SRST gateway instead of Cisco Unified Communications Manager (CUCM). The default message is "CM Fallback Service Operating", but can be changed to any message up to 30 characters long. The older 7910 phone only supports 20 characters and has a separate command option (secondary), but my assumption is that there are not many 7910 phones still in production since the end of sale (EoS) announcement was made on May 20, 2002 and the last date of support was May 2007. The following example changes the LCD message to WAN LINK DOWN:

System message primary WAN LINK DOWN

We’ll continue the SRST conversation in my next blog.

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