CUCM and Unity Integration over WAN

[Ronit Malhotra]

Planning to install Unity Connection version 9 on branch office, separated over WAN by Corporate office

Need to know WAN requirement and limitation

[Dennis Mink]

You would need to check the Unified Communications 9.0 SRND.

that document would contain that sort of details, i.e. clustering across the WAN.

[Manish Gogna]

Hi Dheeraj,

You can check the following link

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab09/clb09/models.html

Additionally, a few points to note when deploying Unity Connection:

Consider the following delay and bandwidth requirements when deploying Cisco Unity Connection servers over different sites:

• Maximum of 60 ms RTT between an active/active pair at different sites.
• Maximum of 150 ms RTT between an active/standby pair at different sites.
• Minimum of 7 Mbps bandwidth is required for every 50 ports. (For example, 250 ports require 35 Mbps.)

Manish