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Table 5-1. Some Error Conditions in Operation of 4600 Series IP Telephones—Continued
Condition
The telephone works properly except for the
speaker.
The telephone works properly, except incoming
DTMF tones are not received.
The telephone works properly, except sidetone
DTMF is not heard.
Hands-Free Answer (HFA) is administered but the
telephone did not automatically answer a call.
The TFTP application terminates and asks for
registration.
Troubleshooting Guidelines
Cause/Resolution
CAUSE: The Speaker was turned off on
the PBX.
RESOLUTION: Administer the PBX to
allow that station's speaker to operate. If
that does not work, do a Self-test on the
telephone.
CAUSE: The TN2302AP board does not
pass in-band DTMF tones.
RESOLUTION: None; the board is
operating as designed.
CAUSE: PBX suppresses sidetone
DTMF.
RESOLUTION: On PBX administration,
on the Change-System-Parameters
screen, enable On-Hook Dialing. If the
user has Hands-Free Answer (HFA) and
answers the call on the telephone's
speakerphone, then switches to the
handset, pressing the dialpad buttons
does not send DTMF tones. This is a
known bug, and the only current
resolution is to disable HFA.
CAUSE: HFA only works if the
telephone is idle. If a second call comes
into the telephone while the first call is in
progress (including ringing before the
first call is answered), the second call is
ignored.
RESOLUTION: None.
CAUSE: Non-Avaya shareware or
freeware TFTP applications often cease
operating to request registration.
RESOLUTION:
Short-term: Restart the application.
Long-term: Register the product or
replace it with an application that does
not behave this way (for example,
Avaya's TFTP application).
Error Conditions
5-5
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