Troubleshooting guide

Troubleshooting Guide
76
Phone Audio Quality
No dial tone on set when
message waiting lamp is on.
AX controller is running
pre- 3300 7.1.3.6
software.
Patch with the 7.1.3.6 load
(3300_Patch_7.1.3.6.zip from Mitel OnLine,
OR
Update the AX controller with the most recent
post-7.1 software load.
Sets take 10-12 seconds to
receive incoming calls.
ANI/DNIS number
delivery trunk option is
enabled in T1 trunk's
COS.
Disable the ANI/DNIS number delivery in the
trunk's COS.
Tip: You can assign an unused COS to verify if this
is the problem.
Dialing digit conflict. Check the following forms for any potential dialing
conflict:
- Station Service Assignment
- Miscellaneous Assignment
- Feature Access Code
- Agent ID Assignment
- System Option Assignment
IP to IP calls OK, but not IP to
TDM calls (rings once, then call
drops).
E2T not loaded. 1. Verify that the E2T IP address is programmed
correctly.
2. Verify that the E2T IP address is not used
elsewhere on the network.
3. If the E2T IP address was hard coded with a
debug table, verify its settings (see “
DHCP
Configuration Settings”
in the “Installation
Planner:” chapter of the MCD Technician’s
Handbook).
Note: For IP Phone connection issues related to Resiliency, see “IP Device Resiliency” on page 153.
Tip: Use the Configuration (Debug) Menu on display IP phones to view Version, Network,
Telephony/DSP, Connection Browser Config, memory Stats details (see page 188).
Table 20: Audio Quality Troubleshooting
Symptom Prossible Cause Corrective Action
One-way audio
between
Remote IP to
TDM (VM)
No gateway IP address
programmed on E2T.
1. If E2T gets IP address from DHCP server, make sure that Option
03 (Router) is assigned to the scope with the proper IP address
for the subnet.
2. If E2T is hard coded with a static IP address, make sure that the
gateway IP address is programmed properly in VxWorks.
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Table 19: Troubleshooting Phone Connection Problems
Symptom Possible Cause Corrective Action
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