No Dial Tone - Analog Telephones - Mitel 3300 ICP Technician's Handbook

3300 ICP Technician's Handbook – Release 3.2
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Calls are being cut off
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Dial Tone at the set but unable to make calls
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No calls are being received
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If the IP Telephone fails to boot
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To PING from the IP telephone
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To PING from the ICP

No Dial Tone - Analog Telephones

1. Navigate to Maintenance Commands.
2. Establish the Location of the analog set using the Locate
Extension command. If Locate Extension command does not
work verify the programming in the Single Line Set Assignment.
3. Run the State <extension> command. You will get one of the
following responses: Idle, Manbusy, Busy, or Locked Out.
Analog Telephone - Response Busy
If the Response is Busy:
1. Is the telephone engaged in a call? If Yes then the phone is
functioning normally. If No then the phone is not functioning
normally; take the following steps:
2. Disconnect the wiring going towards the phone at the internal
frame closest to the Analog Services Unit.
3. Connect a known good telephone to the internal frame wiring
that connects to the Analog Service unit and verify that there is
dial tone.
4. If there is dial tone then there is a fault in the wiring. If there is
no dial tone then it could be the D-type connector (Amphenol)
cable or a fault with the ASU. Verify the integrity of the
Amphenol by changing it out.
CAUTION: If you change the Amphenol connector this will
affect all users who are connected to that ASU.
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