How can I use letter of the numeric keypad in Zoiper ? To dial by name.
You may enter letters from the keyboard when you need to dial by name.
Ok, but my Intelbras Central CIP 850 does not recognize this letter.
How can i change this settings ?
This should be done on the server side. In your case, you would need to check your system whether it supports dialling of usernames and how to enabled it.