Thursday, July 23, 2015

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
interface GigabitEthernet0/0.134
 description Data
 encapsulation dot1Q 2
 ip address

voice service voip
  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: 

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 
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