Siemens 600 Series User Manual

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ROLMphone 300/600 User Guide
Trunk Queuing
The Trunk Queuing features complete calls for you to 
outside numbers when all available trunks (outside 
lines) have been busy.
Trunk Callback Queuing
Trunk Callback Queuing lets you hang up and have 
the CBX call you back with triple rings when a trunk 
becomes free for an outside call. When you then 
answer, the CBX automatically dials the number.
To queue for a 
trunk callback
Listen for the queuing tone. 
Hang up. The Callback status light will turn on.
Note
If you receive a busy tone instead of a queuing 
tone, Trunk Callback Queuing is not available.
To accept the 
trunk callback
Listen for the triple rings.
If you have a display telephone, FREE is 
displayed.
Answer the telephone. The CBX will automati-
cally place your call.
You will hear the external number that you 
called begin to ring.