What is the keypress URI for the Push-to-Talk button on 7920/21 phones? #

To simulate a Push-to-Talk keypress on 7920/21 phone, use Cisco IPPhoneExecute to execute the URI: Key:PushToTalk

What is the keypress URI for the Call/Release buttons on the 7920/21 phones?#

To simulate a Call or Release button press, send the URIs: Key:OnHook or Key:OffHook

How can I enable web server access for CiscoIPPhoneExecute on CallManager Express?#

By default Web Access in 69xx phones in CME will be disabled, other phones may have this disabled by the admin. To enable one can use "vendor config" setting by performing the following steps:

1. enable (Enables privileged EXEC mode)
2. configure terminal (Enters global configuration mode)
3. service phone webAccess 0 ("0" stands for enabled, "1" for disabled)
4. exit

Note: The above steps are applicable for Cisco Unified CME 4.0 or a later version.

For details, kindly refer the chapter "Modifying Cisco Unified IP Phone Options" and section "SCCP: Modifying Vendor Parameters For a Specific Phone" in the Cisco Unified Communications Manager Express System Administrator Guide

How can I retrieve a specific phone's configuration file?#

One can download the phone's startup config file via TFTP from a PC command line (examples below.) The format of the filename to retrieve is usually devicename.cnf.xml, e.g.: SEP123456789012.cnf.xml

For example consider the following if one wants to get the config file for the phone SEP123456789012:

Linux:

tftp> get SEP123456789012.cnf.xml

Windows:

Transfer successful: 5811 bytes in 1 second, 5811 bytes/s

The same information needed will be present in a pcap if one gets it from phone switch port from boot time onwards (avoiding this TFTP client business.)