SIP-to-SIP Call Transfer

Overview

Our platform supports SIP-to-SIP call transfers, enabling users to transfer an active call to a specified SIP address instead of a traditional phone number. This feature enhances flexibility by allowing direct transfers within SIP networks without relying on phone numbers.

How to Use SIP-to-SIP Transfer

When transferring a call, instead of entering a standard phone number, you can provide the SIP address in the "Transfer the call to" field. The SIP address should be in the following format:

sip:username@domain:port

Example SIP Address Format

Here is an example of a valid SIP address you can use to transfer a call:

sip:[email protected]:5060

sip:: The protocol identifier for SIP.
+19495935555: The user part, which could be a phone number, a username, or other SIP identifier.
@208.128.12.100: The domain or IP address of the destination SIP server.
:5060: The port number (default SIP port is 5060).

Step-by-Step Transfer Instructions

Initiate a Transfer:
- During an active call, navigate to the "Transfer the call to" section or field.
Enter the SIP Address:
- Instead of entering a phone number, type the target SIP address in the format:
```
sip:username@domain:port
```
- Example:
```
sip:[email protected]:5060
```
Complete the Transfer:
- Confirm the transfer by pressing the appropriate button or completing the action in your system's user interface.

Important Notes

Ensure the SIP address is correctly formatted with the appropriate protocol (sip:), username, domain, and port.
Verify that the SIP server (specified by the domain or IP address) is reachable and configured to accept incoming SIP requests from your system.
If the first part of SIP address is a phone number, ensure its prefix with country code (ie. +1)
If no port is specified, the default SIP port 5060 is used.

Benefits of SIP-to-SIP Transfer

Direct Routing: Enables calls to be transferred directly within SIP networks, bypassing the need for traditional telephony infrastructure.
Network Flexibility: Transfers can be made to any reachable SIP address, supporting a wide range of devices and endpoints within a SIP network.
Improved Efficiency: Reduces dependency on public telephone networks, leading to cost savings and more efficient call routing.

Troubleshooting

If the transfer fails, check for the following:
- SIP Address Accuracy: Verify that the SIP address is entered correctly.
- Network Connectivity: Ensure that there is proper network connectivity between your system and the destination SIP server.
- SIP Server Configuration: Confirm that the destination SIP server is configured to accept SIP transfers from your domain or IP address.