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BHCC and BHCA is Communication Manager

Anand Sharma
Level 1
Level 1

Hello Everyone,

"Let me know what is the BHCC & BHCA for Cisco Business Edition 6000 and Cisco Business Edition 7000.

Its vary with each User capacity or Cluster size?"

3 Replies 3

Manish Gogna
Cisco Employee
Cisco Employee

Hi Anand,

For BHCA, as per the design guide

BE6000M and BE600H support a maximum of 5,000 BHCA. With BE6000, adding nodes or hardware platforms is supported to provide high availability, but that does not increase capacity.

With Cisco Business Edition 7000, the normal capacity planning rules of Unified CM apply. For example, user and endpoint capacity increases when nodes are added.

BHCC details can be checked here


Hi Manish,

"Could you update me on this.

I need exact BHCC for both BE6K and BE7K separately.

Suppose number of VM is increase in a system (BE6K/BE7K) then BHCC increases?

Let me Know BHCC for 

BE6K  Small Edition        :

BE6K  Medium Edition    :

BE6K  Higher Edition      :

BE7K  Medium Edition   :

BE7K  Higher Edition     :"

Anand Sharma
Level 1
Level 1

Hi Manish,

Thanks for your response.

I want to know BHCC. The link you shared i already have; its showing cluster wise; the thing i want to know for System only not for the system.

Where, ASR = Attempt Seizure Ratio or Answer Seizure Ratio

ASR refers to probability of a call to get free traffic channel and call to be completed. It is usually measured after the complete operations. It is typically taken between 0.65 to 0.8.

so could you please let me know for the system or separately for all versions of BE6K and BE7K.