Rich, sorry if your expectation was to be cossetted and wrapped in cotton wool but these are "INTELLIGENT WORK FORUMS FOR COMPUTER PROFESSIONALS".
Whilst we all avoid Basic Edition systems like the plague if possible, you have customers using it so an obligation to know a bit more than they do and the G on the phone display is a very low hurdle. And whilst you've made no effort to say thank you for the help given, you've demonstrated great speed when slighted.
The IT department of the company I work for, force me to make a search of their knowledge base before I can raise a ticket on anything. Maybe it would be good if Tek-Tips did the same, since Googling "G on Avaya phone display" would have got you the answer in under a second.
To save time in future:
B = Barred
D = Diverting (Forwarding) Calls
G = Group Member (In Group)
N = No Calls (Do Not Disturb)
O = Out of Service
T = Twinned
R = Resilience
S = System Alarm
P = Parked calls
H = Held calls.
Stuck in a never ending cycle of file copying.