Cisco CME Fast Track Feature

This feature is introduced in CME 10.0 - 15.3(3)M. It provides support for new SIP phone device without changing the IOS version .

Before

In the subsequent CME releases, these new phones would be added into the list of supported phones for CME with the necessary code changes. Currently all the new SIP phone devices which are not yet supported on CME can register to CME as 3rd party SIP phones and get generic SIP line features like Call Hold, Call Resume etc.

After

Fast track support would provide a new configuration utility to provide the phone characteristics of a new SIP phone device. As part of this feature, CME  code would be enhanced to retrieve the phone characteristics of a new SIP phone device and allow the registration of these new SIP phone devices. With this new configuration utility, existing SIP features on CME  would be made available to the new SIP phone devices.

Some new phones do not add new features, but just change the display, change the button layout, etc. Some new phones are created due to cost cutting to provide fewer features or provide the same features with different hardware. These kinds of new phone support which do not change software protocols, do not need CME new feature support are the targets of this feature. To take advantage of the IOS rich parser capability, the configuration will be done using CLI commands.

Forward Compatibility

New SIP phone model is configured using the Fast-Track configuration approach . When CME is upgraded to a later version which has the built-in support for this new SIP phone model , the Fast-Track configuration for the SIP phone model gets removed automatically

If the CME is downgraded to version which does not have the built-in support then the Fast-Track configuration should be applied again manually.

Restrictions:

•  Provisioning of new SIP Phones is supported using IOS CLI commands only, No GUI and SNMP support.
•  Only XML format of phone configuration file will be supported. Text format will not be supported by this feature.
•  Cisco Legend phones ATA,7905,7912 supports only TEXT, such new phone types are not supported.
•  Only built in supported phones can be used as reference phone while configuring a new SIP phone model
•  New phones having a "new call flow" , "new message flow" or "new configuration file format" that are not supported in CME will not be supported by this feature as it needs code changes at CME.

Configuration

configure terminal

voice register pool-type pool-type

 addons max-addon count

 description string

 gsm-support

 num-lines number

 phoneload-support

 reference-pooltype pool-type

 telnet-support

 transport transport-type

 xml-config xml-tag value

exit

	Command or Action	Purpose
Step 1	enable   Router> enable	Enables the privileged EXEC mode. Enter your password if prompted.
Step 2	configure terminal   Router# configure terminal	Enters the global configuration mode.
Step 3	voice register pool-type   Router(config)# voice register pool-type 9900	Enters the voice register pool configuration mode and creates a pool configuration for a Cisco Unified SIP IP phone in Cisco Unified CME. If the new phone type is an existing phone that is supported on Cisco Unified CME release, you get the following error message: ERROR: 8945 is built-in phonemodel, cannot be changed
Step 4	addons max-addons   Router(config-register-pooltype)# addons 3	Defines the maximum number of add-on modules supported in Cisco Unified SIP IP phones. max-addons —The maximum allowed value is 3. The configured add-on modules can be used while defining the pool for the new SIP phone model using the existing type command as shown below: type [addon 1 module-type [2 module-type]]
Step 5	description string   Router(config-register-pooltype)# description TEST PHON	Defines the description string for the new phone type.
Step 6	gsm-support   Router(config-register-pooltype)# gsm-support	Defines phone support for Global System for Mobile Communications (GSM) support.
Step 7	num-lines max-lines   Router(config-register-pooltype)# num-lines 12	Defines the maximum number of lines supported by the new phone. max-lines —If this parameter is not configured, the default value 1 is used.
Step 8	Phoneload-support   Router(config-register-pooltype)# Phoneload-support	Defines phone support for firmware download from Cisco Unified CME. You can use the load command in the voice register global mode to configure the corresponding phone load for the new phone type if it supports phone load.
Step 9	telnet-support   Router(config-register-pooltype)# telnet-support	Defines phone support for Telnet access.
Step 10	transport { udp | TCP }   Router(config-register-pooltype)# transport TCp	Defines the default transport type supported by the new phone. If this parameter is not configured, UDP is used as the default value. The session-transport command configured at the voice register pool takes priority over this configuration.
Step 11	Xml-config {maxNumCalls | busyTrigger | custom}   Router(config-register-pooltype)#xml-config busyTrigger 2 Router(config-register-pooltype)#xml-config maxNumCalls 4 Router(config-register-pooltype)#xml-config custom 1	Defines the phone-specific XML tags to be used in the configuration file. maxNumCalls— Defines the maximum number of calls allowed per line. busyTrigger— Defines the number of calls that triggers Call Forward Busy per line on the SIP phone. custom—Defines custom XML tags which can be appended at the end of the phone specific CNF file. These parameters are used while generating the configuration profile file. CUCME does not use these configuration values for any other purpose.
Step 12	exit   Router(config-register-pooltype)# exit	Exits the voice register-pooltype configuration mode.
Step 13	end   Router(config)# end

Cisco Approved Configuration for 7800 Series Phones

New Cisco Unified SIP Phone model	Recommended Fast-track configuration	Cisco Unified CME Versions supported	Comments
7821	voice register pool-type 7821 description Cisco IP Phone 7821 reference-pooltype 6921	CUCME 10.0 (15.3(3)M) to CUCME 10.5 (15.4(3)M)	7821 phone is a hardware revision of the earlier 6921 phone.
7841	voice register pool-type 7841 description Cisco IP Phone 7841 reference-pooltype 6941	CUCME 10.0 (15.3(3)M) to CUCME 10.5 (15.4(3)M)	7841 phone is a hardware revision of the earlier 6941 phone
7861	voice register pool-type 7861 description Cisco IP Phone 7861 reference-pooltype 6961 num-lines 16	CUCME 10.0 (15.3(3)M) to CUCME 10.5 (15.4(3)M)	7861 phone is a hardware revision of the earlier 6961 phone. This phone has 16 lines whereas 6961 has 12 lines.
8831	voice register pool-type 8831 description Cisco IP Phone 8831 reference-pooltype 6921	CUCME 10.0 (15.3(3)M) until built in phone support is added at CUCME	8831 is a IP Conference Phone.

Example

voice register pool-type  7841

 xml-config maxNumCalls 4

 xml-config busyTrigger 2

 telnet-support

 gsm-support

 transport tcp

 num-lines 4

 addons 2

 description Cisco IP Phone 7841

 reference-pooltype 6941

!

voice register pool  1

 busy-trigger-per-button 1

 id mac 0008.2F1B.747B

 type 7841

 number 1 dn 1

 template 1

 dtmf-relay rtp-nte

 description OIM PHONE