User guide
Dynamix DW-E
135
Answer:
a. Check whether DW-E’s register time to live is too long or not. If yes,
make it shorter from “H.323 -> Register Time to Live”. If we make it
longer, it means it might need take long time to re-register to
Gatekeeper after Gatekeeper failed or restart. If it is very short, will
cause more IP traffic.
b. Check whether Gatekeeper has a preset TTL setup or not. If so, the
GK TTL will overwrite the DW-E’s TTL request by using the default
value.
Q4. In SIP Mode: DW-E cannot keep registering to SIP Register Server
after Register Server restarted.
Answer:
a. Check whether DW-E’s register IP address, port, user id and
password are correct.
b. Check whether Register Server has a preset TTL setup or not. If so,
the Register Server TTL will overwrite the DW-E’s TTL request by
using the default value.
Q5. DW-E cannot make a success call.
Answer:
a. Check PSTN trunk ready to work or not. You need to have the
following event generated - “9504: trunk alarm clear (trunk #)”
b. Check DW-E is registered to H.323: Gatekeeper /SIP: Register
Server or not. You need to have the following event generated - “9503:
H323 GK/ SIP Register [xxx.xxx.xxx.xxx] found & registered”
c. Check the digit manipulation setting is correct or not. Make sure you
have DM put into call flow editor, interface or VoIP.
d. For P2P call, make sure you have the address book setting for dialed
number.
Q6. Cannot hear voice after the calls connect.
Answer:
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 DW-Ecann accept proxy call only or not.