If you want to utilise the MTNL VOIP service, then
1) You should have a Triband Connection
2) You have to subscribe for the VOIP service and they will provide the SIP Adaptor.The adaptor is very important that you cannot use any adaptor from the market.You have to take it from MTNL only since this adaptor is used for authentication and initiating calls.
Be sure that your case is satisfied with these two conditions.
You may use any kind of VOIP service which are running through internet traffic.They are never blocked by MTNL since it goes through normal internet channel .These services are equivalent to yahoo voice chat.
Just a small clarification to ensure that the above post is not misunderstood.
While you need to be a MTNL Triband customer to avail of MTNL VOIP, they encourage you to take two SIPs so that you can install one here and the other given to your loved one abroad. This may be connected through any ISP. In other words, it is not essential that a SIP must be connected in a MTNL Triband system only. It should work from any ethernet LAN port to any other ethernet LAN port that has internet connectivity.
1) You should have a Triband Connection
2) You have to subscribe for the VOIP service and they will provide the SIP Adaptor.The adaptor is very important that you cannot use any adaptor from the market.You have to take it from MTNL only since this adaptor is used for authentication and initiating calls.
Be sure that your case is satisfied with these two conditions.
You may use any kind of VOIP service which are running through internet traffic.They are never blocked by MTNL since it goes through normal internet channel .These services are equivalent to yahoo voice chat.
Just a small clarification to ensure that the above post is not misunderstood.
While you need to be a MTNL Triband customer to avail of MTNL VOIP, they encourage you to take two SIPs so that you can install one here and the other given to your loved one abroad. This may be connected through any ISP. In other words, it is not essential that a SIP must be connected in a MTNL Triband system only. It should work from any ethernet LAN port to any other ethernet LAN port that has internet connectivity.