System information

APPENDIX H. TROUBLESHOOTING VOIP H-5
Troubleshooting problems with SIP devices such as SIP phones
and external SIP stations
Have you followed the step by step instructions in Chapter 14 of Administering TeleVantage?
This chapter contains the majority of the information you need to know in order to get SIP calls
to work.
My SIP phone or device is not ringing or cannot make calls.
Check the TeleVantage Administrator's SIP Registration Bindings view to see if your SIP
device is listed. If is it not listed, confirm that the SIP device's configuration (Proxy IP, domain,
or Server address) refers to the IP address of your TeleVantage Server's SIP span and that the
username (or userid) matches the corresponding userinfo setting of the TeleVantage user's
external station.
My SIP phone was working, but is no longer able to dial numbers or receive calls
First, unplug the phone and then plug it back in again. If you still have a problem, check to be
sure that the phone’s configuration matches the settings for the SIP span and the User’s external
station settings, as described in Chapter 14 in Administering TeleVantage.
The Device Monitor shows my SIP external station's status as “Out of Service.”
This means that there is no SIP registration in the Registration Binding Table that matches the
configuration of that external station. This problem can occur for any of the following reasons:
Q The SIP phone is not connected to the network.
Q The SIP phone failed to register due to authentication failure.
Q The phone configuration doesn't match SIP external station configuration.
See “My SIP phone or device is not ringing or cannot make calls.” on page H-5 for more
information.
How do I find out the firmware versions of the device currently being used with
TeleVantage?
In the TeleVantage Administrator, select the SIP Registration Bindings view and look at the
User-Agent column on the far right. This column contains this information as reported by the
device.