Hello Everyone, hope you all are doing well.
Recently, I got a new BSNL FTTH installed at my office. It's working fine compared to my earlier ISP.
I found out that there was an option to configure my modem ( Syrotech SY-GPON-1110-WDONT ) as a SIP Trunk that's used to make VoIP calls. Found few resources to configure it and I'm able to connect to the Trunk with my SIP Client. I'm also able to make or receive calls.
The problem is that my voice is inaudible to the person I call (complete silence). So, I thought it might be issue with BSNL and connected an analog phone directly to my modem and it's working fine. I contacted BSNL and they are totally unaware about how VoIP works. I suspect it has something to do with the codecs or something advanced. Please help me out. I've attached the screenshots of my configuration.
Recently, I got a new BSNL FTTH installed at my office. It's working fine compared to my earlier ISP.
I found out that there was an option to configure my modem ( Syrotech SY-GPON-1110-WDONT ) as a SIP Trunk that's used to make VoIP calls. Found few resources to configure it and I'm able to connect to the Trunk with my SIP Client. I'm also able to make or receive calls.
The problem is that my voice is inaudible to the person I call (complete silence). So, I thought it might be issue with BSNL and connected an analog phone directly to my modem and it's working fine. I contacted BSNL and they are totally unaware about how VoIP works. I suspect it has something to do with the codecs or something advanced. Please help me out. I've attached the screenshots of my configuration.
![Erobary.png](/proxy.php?image=https%3A%2F%2Fi.imgur.com%2FErobary.png&hash=2597cce784cdefd3c020240abe586585)
![UJhWAiJ.png](/proxy.php?image=https%3A%2F%2Fi.imgur.com%2FUJhWAiJ.png&hash=0f28869f87c7ba4be55b1a735d4f1190)
![Q41YN4v.png](/proxy.php?image=https%3A%2F%2Fimgur.com%2FQ41YN4v.png&hash=7667b6b0d6e29fdafd9b32ef878b1f78)
![RLQEhoS.png](/proxy.php?image=https%3A%2F%2Fimgur.com%2FRLQEhoS.png&hash=c16e81313c64b770938bcd30f20a4a42)
![WUNdy8z.png](/proxy.php?image=https%3A%2F%2Fimgur.com%2FWUNdy8z.png&hash=77441cce0d3718ee5f233ab55ac4d561)
![O54wgJw.png](/proxy.php?image=https%3A%2F%2Fimgur.com%2FO54wgJw.png&hash=28ec7c0ac1ff7f015e545bb5658fa6ca)
![KqPTCu2.png](/proxy.php?image=https%3A%2F%2Fimgur.com%2FKqPTCu2.png&hash=d4f2507a17d29798ac8054aceffdd92b)