Remove the IP address of phone from Blocked IP Address.

Ip phone registration issues. I am experimenting a similar issue but with phone T49G. I guess that Auto NAT feature was doing some kind of SIP translations on the phone itself. 192168115060 but always port 5060.

Adjust your enrollment restrictions settings in Intune so that the user you are enrolling the IP phone. Not booting upnothing in the display. The IP phone cannot download its configuration file.

Load the image and start the configuration process. I am running CUCM 86223900-10. Use to unlock your phone and delete the CTL ITL files.

If Cisco IP Phones are unable to register to the Cisco CallManager with the error Registration Rejected Database Config Error and if the DBLHelper shows no issues with the replication it could be due to the blank hosts file and lmhosts file. The phone has an IP from our voice vlan and it is connected. The Cisco IP Phone is not receiving the IP address subnet mask or default router address.

You have configured your enrollment restrictions such that Android work profile enrollment restrictions are applied to the end user account that you are using to enroll. These are several of the issues that might cause a Cisco IP Phone not to register. First try Restart your IP Phone and see whether the IP Phone registration issue gets rectified.

Besides general troubleshooting issues youll also have to reset your phone to configure brand new phones reassign a phone to a new user use it with a new phone service or set it up with a new Internet connection. The customer changed the extension user and never registers. In each phone there is a setting for local SIP port for each account.