2Greet - VoLTE IMS alternative solution

2Greet is a Core Network function that gives Voice service over LTE, 3G or WiFi. The network integration is seamless and it doesn’t need any special configurations.

This technology is for Mobile Network Operators that face challenges in implementing VoLTE. You need an alternative solution for providing voice over data to your subscribers. Use 2Greet for voice services in LTE or 5G networks and stop wasting resources on 2G/3G coverage.

You don’t need to invest more money in LTE or 5G spectrum because you can reuse the freed 2G/3G spectrum that you got the license for.

The voice service is available for the user in every situation because 2Greet can CS Fallback to the GSM / UMTS network whenever data is unavailable.

2Greet is a VoLTE IMS Core Network function that provides voice service for LTE and WiFi networks

2Greet has 3 components that make the entire process work:

  • 2greet function icon
    Core Network voice function
    This is a part of the operator Core Network.
  • 2greet app icon
    Android Application
    An App for the initial setup and configuration. After that, the subscriber uses the phone’s default dialer. It doesn’t drain the device’s battery and it is only used for configuration.
  • 2 greet redirect icon
    Redirect Service
    This service allocates each SIM to the correct 2Greet Core Network function.

Features and benefits:

  • Seamless integration
    You don’t need to change the architecture of your current network.
  • VoWiFi included
    It automatically switches to WiFi when is available, unloading the network’s traffic.​
  • Android devices
    2Greet works on ALL Androids without phone vendor support.
  • Security
    The voice is encrypted by default using SRTP​.
  • Scalability
    You can just install more functions into your network if needed.
  • Constant support
    You can benefit from free support in the first 6 months after purchase.
2Greet - VoLTE IMS complementary solution

Software specifications

  • SIP
    Used for the communication between the 2Greet function and the operator’s network.
  • RTP
    Connection for voice.
    For MAP protocol.
    For signaling.
    Communication between the app and the Core Network function.
  • SRTP for security
    Secure Real-time Transport Protocol provides encryption, message authentication and integrity for your network.


  • CAMEL connection for the GMSC
  • CAMEL subscription in the HSS / HLR user profile
  • Google Firebase Cloud Messaging account
  • TLS certificate

2Greet is a VoLTE IMS solution that comes with a Demo Program

The Demo Program is free of charge and offers you a chance to check if this is the right solution for your business.
Usually, it costs a lot to test technical equipment and make sure it works for your type of network. Our experience has taught us how important it is to able to test new technology and make a decision having all the information and tests done. We are offering technical support within all stages of your project.

You can create a Demo Account and try 2Greet on your phone by accessing the 2Greet website here – https://2greet.yatebts.com