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Using Session Initiated Protocol (SIP)
SIP Troubleshooting
The voice quality is poor.
The SIP phone supports packet loss and network jitter to some extent. Above
these levels, the voice quality can deteriorate. The G.729 codec will have better
performance over the G.711 codec and it can be selected in the configuration.
The call-hold feature does not work properly.
The call-hold feature requires co-operation from both ends. The behavior is not
defined if the other phone does not support the hold feature.
The speakerphone does not work.
The SIP phone has a speaker to support one-touch dialing, but not for a
speakerphone. The other party will hear you if you are in speaker mode but the
voice on the speaker may be of poor quality.
Browser Access
There is no response through the browser.
Check if the SIP phone is connected to the network and if you have the correct
IP address of the phone.
I do not know my IP address and am trying to access the SIP phone.
Select the factory-default option and restart the phone. Now the phone will use
factory default parameters and uses a known IP address.
The browser displays a server-busy message.
This implies that another person is configuring the SIP phone.
The browser displays a logout message.
Check the user name and password.
The browser displays a logout message during configuration.
more
If the browser is idle for
than 10 minutes, the SIP phone will terminate the
session. You must restart the browser.
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