Cisco CME and Lync Simultaneous Ringing using Cisco SNR Feature

Cisco has a Single number reach feature that allows calls to ring more than one number. Think of it as a parallel hunt group but with the option to turn it off and on from the user's phone.

With this setup, the end user's Lync client and Cisco phone will ring a the same time.

Lync (Skype for Business) setup

Create PSTN Gateways
 - use the IP address of the CME

Create the Trunks
- Listening on port 5060 and Mediation port 5068.

Enable Enterprise Voice for user's account.

Assign a fake number to the Line URI in the user's account setup
(Example of user with extension 4025 would be Tel:+13065554025)

* You can also create a CME Dial Plan and a CME Voice Policy to allow Lync users to call out on the CME's phone lines from their Lync client.

Cisco CME setup

- If you are using Voice and Data Vlans on your CME, bind it to the CME same Vlan used by the Lync server.

interface GigabitEthernet0/0.1

 description Voice 

 encapsulation dot1Q 1

 ip address 192.168.1.1 255.255.255.0

!

interface GigabitEthernet0/0.134

 description Data

 encapsulation dot1Q 2

 ip address 192.168.2.1 255.255.255.0

voice service voip

 sip

  bind control source-interface GigabitEthernet0/0.1

  bind media source-interface GigabitEthernet0/0.1

Create voice translation-rules (these will add the +1306 in front of the number)

voice translation-rule 8000
 rule 1 /^81306/ /+\11306/
 rule 2 /^810101306/ /+\11306/
 rule 3 /^8306/ /+\11306/
 rule 4 /^8/ /+\11306/

voice translation-profile Lync
 translate called 8000

Create dial-peer for Lync server, 8 followed by the 7 digit phone number. 

dial-peer voice 8000 voip 

description ** SIP 7 digit to Lync13-01 ** 

translation-profile outgoing Lync 

destination-pattern 8....... 

notify redirect ip2pots 

session protocol sipv2 

session target ipv4:192.168.2.10:5068 

voice-class sip bind control source-interface GigabitEthernet0/0.2

voice-class sip bind media source-interface GigabitEthernet0/0.2

session transport tcp 

dtmf-relay rtp-nte 

codec g711ulaw 

fax rate disable 

fax protocol pass-through g711ulaw 

no vad

SNR on SIP Phones  (Add these commands to the basic DN and Pool settings)

voice register dn 1 

number 4025 

mobility snr 85554025 

delay 0 timeout 12 cfwd-noan 1200 

snr ring-stop 

snr answer-too-soon 1

voice register pool 1

number 1 dn 1

session-transport tcp

dtmf-relay rtp-nte sip-notify

SNR on SCCP phones (Add these commands to the basis Ephone-dn and ephone settings)

ephone-dn 300 octo-line 

mobility 

snr calling-number local 

snr 85554025 delay 0 timeout 12 cfwd-noan 1200 

snr ring-stop 

snr answer-too-soon 1

ephone 1

button 1:300
See also - Cisco's Single Number Reach article