Centralised CUCM and Distributed CUE - Deployment mode

[rajesh.kumar]

Hi,

Planning for centralized CUCM ver 8.6 and distributed CUE for 10+ sites. Each site has router based CUE and all the phones are registered with central CUCM.

I have refered below CUE deployment model.

http://www.cisco.com/en/US/docs/voice_ip_comm/unity_exp/design/design21/cuemodel.html

Query is,

(1) Each site CUE integration required separate CTI ports creation on CUCM ?

(2) Need to create separate jtapi user for each CUE site?

(3) what about MWI configuration at each site CUE ?

Can it be same for al the site CUE or it has to be different for each CUE site ?

parameter "strMWI_OFF_DN" "8001"
parameter "strMWI_ON_DN" "8000"
4) Any sample configuration availble with 3 sites ?

Rgds
Rajesh

[Rob Huffman · Accepted solution]

Hi Rajesh,

Here are some of the answers that I could find

Best Practices for Deploying Cisco Unity Express

• Each mailbox can be associated with a primary extension number and a primary E.164 number.

Typically, this number is the direct-inward-dial (DID) number that PSTN callers use. If the primary

E.164 number is configured to any other number, use Cisco IOS translation patterns to match either

the primary extension number or primary E.164 number so that the correct mailbox can be reached

during SRST mode.

• Each Cisco Unity Express site must be associated with a CTI route point for voicemail and one for

AA (if licensed and purchased), and you must configure the same number of CTI route points as

Cisco Unity Express ports licensed. Ensure that the number of sites with Cisco Unity Express does

not exceed the CTI scalability guidelines presented in the chapter on Call Processing, page 8-1.

• Cisco Unity Express is associated with a JTAPI user on Cisco Unified CallManager. Although a

single JTAPI user can be associated with multiple Cisco Unity Expresses in a system, Cisco

recommends associating each dedicated JTAPI user in Cisco Unified CallManager with a single

Cisco Unity Express.

• Calls into Cisco Unity Express use G.711 only. Cisco recommends using a local transcoder to

convert the G.729 calls traversing the WAN into G.711 calls. You can configure Cisco Unified

CallManager regions with the G.711 voice codec for intra-region calls and the G.729 voice codec

for inter-region calls.

• If transcoding facilities are not available at the Cisco Unity Express site, provision enough

bandwidth for the required number of G.711 voicemail calls over the WAN. Configure the Cisco

Unified CallManager regions with the G.711 voice codec for calls between the IP phones and Cisco

Unity Express devices (CTI ports and CTI route points).

• The CTI ports and CTI route points can be defined in specific locations. Cisco recommends using

location-based call admission control between Cisco Unified CallManager and Cisco Unity Express.

RSVP may also be used.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/4x/42unityx.pdf

Cheers!

Rob

"Why not help one another on the way" - Bob Marley