Welltech WG5290 - Manual (Page 147)

Welltech Computer Co., Ltd.
WellGate 5290 User Guide – V6.1 - 147 -
a. Make sure the interface and host Enternet are well connected.
b. Ping each related IP to see network is working or not.
c. The voice codec priority should be matched both side.
Q7. In H.323 Mode: Failed to setup a fast start call.
Answer:
a. Make sure the far end “Fast Start” is enabled.
b. Check weather Gatekeeper can support Fast Start or not. (Some
Gatekeeper is not.)
c. If you cannot hear early announcement, make sure the far and H.323
end point can listen RTP port before connect.
Q8. In SIP Mode: Failed to setup a normal call.
Answer:
a. Make sure the voice codec priority should be matched both side.
b. Make sure the WG5290cann accept proxy call only or not.
Q9. In SIP Mode: Failed to hear the early media before call connected
Answer:
a. Make sure the 180 SDP or 183 SDP are enabled.
b. Make sure the remote SIP end point can cut through voice before call
connected.
Q10. Cannot send or receive the DTMF to/from far end VoIP end point.
Answer:
a. In H.323 Mode: Make sure WG5290 and other endpoint use same
DTMF relay mode (e.g. H.245 Alphanumeric.)
b. In SIP Mode: Make sure WG5290 and other endpoint use same
DTMF relay mode (e.g. SIP Info or RFC2833-payload type.)
c. In SIP Mode: Make sure the remote SIP end point’s RTP payload type
is supported or not.
d. If use Q.931 UUI DTMF Relay mode, make sure Gatekeeper can
correctly forward Q.931 UUI when registering to Gatekeeper is set to
true.
Q8. Does WG5290 can cooperate with the Cisco VoIP products?
Answer:
The short answer is “yes”. The following configuration example can be
used for normal and fax call.
Example for H.323 Mode
Voice service voip
Fax protocol t38 ls-redundancy 1 hs-redundancy 1
Voice class codec 100
Codec preference 1 g723r63
Codec preference 2 g729r8
Codec preference 3 g711ulaw
Codec preference 4 g711alaw