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Teledex IP250D User’s Guide SIP/MGCP
TROUBLESHOOTING AND CARE
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5 Troubleshooting and Care
This section covers troubleshooting and caring for your IP250D.
5.1 BASIC TROUBLESHOOTING MEASURES
If the IP250D does not seem to function as expected, there are several troubleshooting
techniques that may be tried before contacting the network administrator.
5.1.1 Disconnect From the Network
Unplug the network patch cable from the wall jack. Wait at least fifteen (15) seconds,
then plug the cable back into the same jack. The IP250D will attempt to re-establish
contact with the SIP server or Call Agent. In many cases of malfunction, this should
restore normal operation.
Warning: Risk of electrical shock! Dangerous voltages may be present on the exposed
terminals of the network patch cable after it is plugged into the network wall jack.
5.1.2 Disconnect the PC
If there is a PC or other network device connected to the “PC” network port, disconnect
the patch cable to the PC from the base of the keyset, then perform the actions from sec-
tion 5.1.1, Disconnect From the Network.
5.1.3 Check the Cords and Cables
If the previous two steps do not solve the problem, all of the cords and cables (including
handset cord and headsets) should be disconnected, inspected for dirt or corrosion, and
reconnected.
5.2 GENERAL TROUBLESHOOTING
SYMPTOM: There is no LED or display activity at power on.
SOLUTION: Check that the power supply unit (PSU) is properly connected.
5.3 NETWORK TROUBLESHOOTING
SYMPTOM: General network activity problems. The device does not appear to be
performing any network-related functions.
SOLUTION A: Ensure that the ethernet cable connection is secure, and that the link
indicators at both ends of the ethernet cable are active.
SOLUTION B: Try pinging the phone’s IP address from any Unix or Windows machine
connected to the same network. Type:
ping www.xxx.yyy.zzz [Enter]
(where www.xxx.yyy.zzz is the IP address of the unit).
!
WARNING