For incoming calls to the SNR extension, Cisco Unified CME rings the desktop IP phone first. If the IP phone does not answer within the configured amount of time, it rings the configured remote number while continuing to ring the IP phone. Unanswered calls are sent to a configured voice-mail number.
The IP phone user has these options for handling calls to the SNR extension:
<note>Night Service seems to interfere with SNR</note>
ephone-dn 1 dual-line mobility snr <remote-e164> delay <secs> timeout <secs> cfwd-noan <vmail-pilot> ! *** Optional snr calling-number local
ephone-template 1 softkeys idle Dnd Gpickup Pickup Mobility softkeys connected Endcall Hold LiveRcd Mobility