CME // COR - Ephone vs Register Pool

[RicardoGodinho10240]

Hello team,

I used to have an ephone configuration (SCCP) but since the phone was damaged I had to introduce a new SIP phone via register pool:

Ephone:

ephone 24
mac-address XXXX.XXXX.XXXX
username "423" password 423
type 6921
button 1:24
!

ephone-dn 24 dual-line
number 423
call-forward busy 400
call-forward noan 400 timeout 20
corlist incoming interna
!

Voice Register Pool:

voice register dn 50
number 423
no allow watch
call-forward busy 400
call-forward noan 400 timeout 20
mwi
!

voice register pool 50
busy-trigger-per-button 1
id mac XXXX.XXX.XXXX
type 7811
number 1 dn 50
dtmf-relay rtp-nte

The 7811 is registered, but I can't make calls, even after applying the "cor incoming interna default", similar to the ephone "corlist incoming interna".

Can you please let me know what am I doing wrong?

Thank you!

[BalajiSivaraj49175]

Troubleshoot

This section provides information you can use to troubleshoot your configuration.

Place a few test calls over the gateways through the IP WAN or the PSTN to verify that your configuration is correct. You can see if the call that comes into the gaetway is ringing when you run a debug on the target gateway.

Refer to the instructions in Cisco IOS Telephony Service (ITS) Configuration and Troubleshooting for additional information on troubleshooting.

• debug voip ccapi inout —Used to debug end-to-end VoIP calls.

• debug ephone detail —Used to set detail debugging for the Cisco IP phone.

Can share those debug and refer the document for cor configuration. The cor configured is  only routed to internal extension 

Configuring Class of Restrictions (COR) - Cisco