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New Member

Calls per Second

Friends,

Is there any information that a CUCM 8.5 / 8.6 would handle no. of calls per second? I remember when I was working Cisco TAC, he informed that CUCM8.X would handle 18 calls per second. Can you please help me in a Cisco document?

Mohsin.

  • IP Telephony
5 REPLIES
Hall of Fame Super Gold

Calls per Second

18 cps seems very, very little.

Let' look at this another way, which server model are we taling about? How many calls you expect ?

New Member

Calls per Second

Its MCS-7845-I3 with CUCM 8.5.1

Hall of Fame Super Gold

Calls per Second

And how many phones do you have, how many PSTN circuits ?

New Member

Calls per Second

We have more than 12000 phones and around 90 PSTN Circuits. Are you using the Sizing tool to check this?

Hall of Fame Super Gold

Re: Calls per Second

With that many phones, I recommend you get in touch with a Senior Network Consultant of Cisco EMEA for overall assesment on the entire project.

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