Telephony Presence in a Third Party Application

[JeroenNijs]

Hello,

For a customer , we want to integrate the cucm telephony presence status into a web application (sort of phonebook).

In DEVNET I found out that there are many ways to do this.

Can anyone help me what the best way of working is to get this info?

[dstaudt]

Probably the most straightforward to use, in a server-to-server situation like a corporate directory, would be the Presence Web Service API https://developer.cisco.com/site/im-and-presence/documents/presence_web_service/latest_version/

I would suggest a 3-tier architecture, where you build a service that dynamically subscribes to individual user presence with CUCM IM&P based on which directory entries are being viewed (maybe a caching mechanism?), then relays that status to your directory page browser clients dynamically (e.g. REST/React.)