EXFO EXpert VoIP Test Tools - Manual (Page 97)

EXpert IP 91
8 Troubleshooting
Solving Common Problems
Before calling EXFO’s technical support, please read the following
common problems that can occur and their respective solution.
Problem Possible Cause Solution
SIP call not working. Signaling port may not be
correct.
Check whether signaling
port is configured correctly.
SCCP call not working. SCCP Call Manager may not
be available.
Check whether Call
Manager is up.
H.323 call not working. H.323 ID of destination
phone may not be correct.
Check whether H.323
Gateway is up.
Check whether the
destination H.323 Endpoint
is registered to Gateway.
H.248/Megaco call not
working.
H248 endpoint name may
not be correct.
Check whether the H.248
endpoint name is
configured correctly.