Cisco IP phone 3900 series with 3CX system

[Hussain]

Had anybody tried integrating cisco 3900 series phones with 3CX system ?and what about the call features transfer, & hold

 

[leejor]

Don't recall seeing a previous post on that specific Cisco model, but, this post would seem to indicate that the set will work using a configuration file from a 7911.. i would expect the call features, on 3CX, to be similar as well.

https://community.cisco.com/t5/ip-telephony-and-phones/cp-3905-asterisk/td-p/1995981