Grandstream HT702 - no dial tone back

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tguy888
Just Passing Thru
Posts: 7
Joined: 11/17/2011
SIP Device Name: Linksys PAP2T-NA
ISP Name: Teksavvy
Computer OS: Win7
Router: Linksys WRT-54G

Grandstream HT702 - no dial tone back

Post by tguy888 »

I just bought a Grandstream HT-702 using on FPL and when I make a call 9 of 10 will no ring tone back for the phone number I dial. Is anyone know how to fix it or troubleshooting? Which setting I should change?

I have do more test and found out, if no dial tone back. The other side will keep ring but I did not heard anything. Even the other side pickup the phone and I still not hearing anything on my side. What is the problems or setting need to change? I have follow the PDF files to config and the firmware version is 1.0.4.8.

There was a case someone call me but I cannot heard anything on my side. Even I set the HT702 on the DMZ still have the same problems.

Another things is if I am not dial the phone number fast enough and the line will go to busy signal. Is anyone know how to fix this problems also.

P.S. I am also running a Cisco Pap2t and do now have any problems at all. No port forward and dmz. I am using different udp port than the Grandtream.

Thanks in advance
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