@mahat 

Setup Guide for BSNL FTTH: https://youtu.be/o8zBrZZUf9s​​​​​​​

  @sp6035 I think this is quite misleading. Do enlighten us which application you're speaking about. It is true that BSNL is hesitant to work with TP-Link routers, but the way you say it, the routers no longer being supported, would imply that current users will face problems as well. This is not the case.

BSNL uses D-link routers in my area, which is arguable worse in terms of configuration and control. If you're ready to setup the router (Tp-Link) yourself, the internet works flawlessly. However, the voice part is not quite as smooth. There are issues with timeout in the VoIP settings.

  @Yuno-Tesu did u found any solution for voip
And (thanks for the stock software that better than bsnls frimware and its voi ip timeot in an hour i think). if u found any solution reply

  @Udhaya could you please re-upload. Link not working.

@Yuno-Tesu Thanks for sharing the firmware. I did manage to get VoIP working after leaving it non-functional for months before I discovered your repo.

The steps I followed:
1. Download and apply the new firmware from https://github.com/Yuno-Tesu/Tp-Link-XC220-G3v-v2-Firmware/blob/197af8bb95a8713dc10d24aafdfb38f994e8097c/XC220-G3vv2_1.11.0_0.8.0_UP_BOOT(240612)_2024-06-12_20.14.45.bin.
2. Delete the old VoIP interface setting from Network > Internet.

3. Create a new VoIP interface with the same settings. (Service type: VOIP, Vlan Id: 1831, IP: Dynamic, Interface Binding: VOIP). 
4. Make sure the VoIP interface status is 'connected'. (If not, make sure the interface settings are correct in the last step).

5. Go to Telephony > Telephone Number.

6. Delete all the existing configurations.

7. Add a new entry with the correct settings. Ask your ISP for Registrar address, authentication id, and password for VoIP. Choose "Other" as the Telephone Provider for BSNL connections.

This should be enough to get VoIP working.

  @tusharsnn Thank you for letting me know that it works. However, as  itsroshanali pointed out, there is a timeout. I'm not exactly sure what the maximum cap is. It should, but does not automatically reconnect after the timeout. VoIP will work after restarting the router. This is a less than ideal situation. I cannot contact support for an extended period of time because I had to relocate. Will let you know if I get a response when I can contact them again.

If you happen to contact them and get a fix, I'd really appreciate it if you posted it to the forum as well. ^ ^

  @mahat  pon register karte time epon ya gpon aata ye dekhe