This is a very basic guide with implementing Single Number Reach (SNR) on a UC-500/520 system, it will require tweaking according to your needs.
If you get stuck on anything please refer to the following link below:
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmesnr.html.
Cheers,
David.
#############Ephone-Template Configuration####################
ephone-template 1
softkeys idle Redial Gpickup Cfwdall Dnd Mobility
softkeys connected Hold Endcall LiveRcd Trnsfer Mobility Confrn TrnsfVM Park
type 7975
##The above context needs to be added or modified, you may be required to adjust this according to the customer requirements##
##Also make note of the "Type" this will also be required to create different templates for each phone type, there ##
##is no generic Template that can be used, you can not add more then one type this does not work##
############Ephone-DN configurstion##########################
ephone-dn 1 dual-line
number
secondary no-reg primary
pickup-group 1
label
description
name
mobility
call-forward busy
call-forward noan timeout 10
snr delay 4 timeout 10
##You may need to adjust the timeouts according to testing and what the customer would like to have, keep in mind that long##
##Timeouts on the SNR could be a problem, I.E delayed ringing after the call has been answered on the Mobile device##
##Anything that has "<>" attached to it, needs to be modified accordingly to the system parameters##
############Ephone Configuration#############################
ephone 1
button 1:1
ephone-template 1
##In this section the most important thing is the Ephone-Template assignment, make sure you assign the correct template##
##That corresponds to the phone type, if not certain functions may not work due to code structure##
##Configure the rest of the ephone according to system design and planning##
