Configure or change buttons in left side of Cisco phone 8851 in session line mode

[GidonAniz29947]

Hello.

In Cisco 8851 phone (sip88xx.12-8-1-0001-455), session line mode, there are three keys in the left side:

1: Alerting Calls

2: All Calls

3. Answer Oldest

There is a chance that i can add or change those option ?

[Nithin Eluvathingal]

You can change that to enhanced mode and can use those  button for supported features. 

[GidonAniz29947]

Thanks Nithin.

The issue is that i don't want to change to enhanced because all the customer phones on session line mode and when i change to enhanced the message on the phone screen change i mean :

A call-> to B in session line mode A see on the screen the number of B and this is good,

while in enhanced mode  A call-> to B,  A see on the phone screen the number of B but below it on the screen the message "To A" (not make any sense)

[Roger Kallberg]

Sounds like a case of having the cake and eating it. The solution for your question is given by @Nithin Eluvathingal