Telephone services - telephone device instructions
Don't know the model of telephone you are using? The type of device is indicated on a sticker on the underside of the phone.
The instructions on this page relate to Ericsson telephones DBC3211 and DBC3212.
There are separate user guides available for other models of telephones:
- DBC 4220 and 4222 (PDF)
- DBC 4223 and 4225 (PDF)
- Ericsson Dialog Quick Reference guide (PDF)
- Mitel 6865i
- Mitel 6867
There are also instructions towards the end of the page on how to ring Trinity internal extension numbers from Trinity mobile phones.
Call an internal extension
- Lift handset and dial the required number. You can dial '0' for the operator.
Call an external phone number
Your access for phoning non-Trinity numbers will depend on the access level of your telephone. For a phone with local ‘01’ access with Trinity Operator Access and no mobile access:
- For Dublin numbers first press '9' then enter the phone number, not including the area code. For all other numbers dial '0' for the operator to place the call.
Answer a second call
- Press the access line button (rapid flashing)
- The first call will automatically go on hold
- You can switch between both calls by pressing the relevant access line button.
Put a call on hold
- Press the access line button (steady light)
- The call is now on hold, indicated by the rapidly flashing light.
To retrieve the call
- Press into the access line button again.
Automatic call back
If a dialled extension is busy, on receipt of busy tone:
- Press the pre-programmed call back key or the digit '6'.
- Hang up.
- When the extension becomes free it will call you back, giving '12' continuous rings and the extension number on your display.
- Lift handset or press the call back key and you will be immediately connected to the now free extension.
- Note: You must lift the handset before the rings stop otherwise the call back is cancelled.
- To cancel the call back dial #37#
Transfer a call to another extension
- Press the inquiry line
- Access line 1 will automatically go on hold
- Dial the required extension number
- Announce the call
- Press the transfer key
- Note : lf the extension you are transferring the call to does not answer or is busy, press access line 1 to return to your call.
Group call pick-up
If you are a member of a call pick-up group, you may answer calls to any other member within the group:
- Dial 88 or * 8 #
Call diversion
If you have this facility, all your calls will be answered at a pre-programmed answering position.
Follow-me
If you want to re-route your calls to another internal extension:
- Dial * 21 * answering position number #
To cancel follow-me:
- Dial # 21 #
Change ring character of phone
- Leave handset on hook
- Press the Programme key
- Press any digit 1 - 9 and 0 (each digit gives a different ring tone)
- Press the Programme key.
For further assistance with any of the above please contact the IT Service Desk.