If you have an AWS instance connected to an on-premise router that is physically connected to SIP lines in India, you can configure the AWS instance to act as a SIP trunking gateway. This will enable the AWS instance to receive and send SIP traffic to and from the on-premise router and the SIP lines.
To set up this configuration, you will need to follow these general steps:
Configure the AWS instance: Set up the AWS instance to handle SIP traffic. This may involve installing and configuring a SIP server, such as Asterisk or FreeSWITCH, and configuring firewall rules to allow incoming and outgoing SIP traffic.
Connect the on-premise router to the AWS instance: Configure the on-premise router to establish a VPN tunnel or IPsec connection to the AWS instance. This will enable the on-premise router to communicate with the AWS instance securely over the internet.
Configure the SIP trunk: Configure the SIP trunk on the AWS instance to use the SIP credentials provided by the SIP lines in India. This will involve creating a SIP account on your server and configuring it with the SIP credentials.
Test the connection: Once you have configured the SIP trunk, test the connection by placing a call from the SIP lines in India to a phone number using the AWS instance as a gateway. You can use a softphone or SIP client to place the call and verify that the call is successful.
Monitor and troubleshoot: Monitor your SIP server and network traffic to ensure that the connection is stable and troubleshoot any issues that arise.
It's worth noting that the specific steps required to set up this configuration may vary depending on the SIP server software and network configuration used. You may need to consult the documentation or support resources for your SIP server and network infrastructure to ensure that the connection is set up correctly.