Cisco Unity with CUMI: Max http connections

[ekaitz.berriocirera]

Hi all,

We’re designing a solution using Cisco Unity Connection and CUMI API so that our client can consult the real time state from voicemails.

We have 600 voice mails in CUC but the developers have detected that using CUMI they can only subscribe to 300 simultaneous voice mails. From 300 subscriptions Cisco Unity seems to anulate the subscription. Is there some Max Sessions limit in CUC?

The developers also tried other way to subscribe to voice mails. When the server starts it subscribes 20 voice mails and each 30 seconds, the server anulates his current subscriptions and tries to subscribe to 20 new voice mails. After some cycles, Cisco Unity sends a 503 (Temporarily Unavailable) and CPU arrives to 100%.

Our OVA version is for 1000 users (1CPU, 4GB RAM, 160 GB). We would like to know if using the next OVA for 5000 users we wouldn't have the same problems.

Regards,

Ekaitz

[dstaudt]

The CUMI comet-based notification system is supposed to be quite lightweight and able to scale to many hundreds/thousands; however the design is that individual client apps would be the ones connecting.  I'm not sure what caveats are concerns might arise if you attempt to do high amounts of subscriptions from a single server.

I would definitely have you look at the CUNI notification service, which is designed for server-to-server scenarios and bulk notification subscriptions...it might help (and would be the recommended solution:) Cisco Unity Connection Notification Interface (CUNI) API - DocWiki