Registration issue for Cisco VoIP 7942 with Call Manager Version 8.6

[rpg.jhansi@gmail.com]

We have a cisco router with Cisco Call Manager version 8.6 and VoIP Phones 7942G. Recently, due to some requirement we replace few of our phone with 7841. 

After regular configuration of phone (e.g. IP  Address, Router, TFTP etc), phone came on network (able to ping). I am getting the error message "unprovisioned" and phone does not get register. 

Any help will be appreciated!!!

[Vaijanath Sonvane]

Hi,

Are you using router with Cisco Call Manager Express or do you have enterprise version of Call Manager on MCS/UCS Server.

If you are using Call Manager Express, please attach full configuration of your router with this post.

[Chris Deren]

Are the phones properly configured in CUCM?