User`s manual

MP-1xx/H.323
MP-1xx/H.323 User’s Manual 104 Document #: LTRT-00651
8.6.3 Possible H.323 Problems
Possible H.323 problems are described in Table 8-4.
Table 8-4: Possible H.323 Problems
Problem Possible Cause What to do
The ini file was not updated to do so Update ini file.
Gateway didn’t register in
Gatekeeper
No call was made Gateway register only before first call.
Gatekeeper rejected
registration
Gatekeeper already has same
registered phone numbers
Change the Gateway phone numbers
Silence compression not compatible
(when working with a Gateway other
than an AudioCodes Gateway)
Disable it and check if quality is better.
G.711 voice quality is bad
(clicks)
Packet size not compatible (with
G.711)
Check that packet period in remote side is 20
msec.
SETUP is sent before all
digits were dialed
“MaxDigits” parameter has too small
a number
Update the parameter.
No voice
There is no match in codecs
Check log in HyperTerminal.
Change codec definition.