I have configured a Cisco IP Phone 7940 with the SIP firmware.
Then I have configured a SIP user on the UC500. With this user, I can connect XLite (SIP) to the UC500. Then I use this SIP user on my Cisco IP Phone 7940. On the screen of the phone, I see:
- the number of the Phone
- Your current options
- Redial, NewCall and CFwdALL
It seems okay, but when I dial a number the following message is on the IP Phone: Calling (out INV)
But there's is no call.
I haven't yet enough know...what I have to do. Maybe you can help me?
Thanks in advance!