2Greet – VoLTE IMS Complementary

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.
Customer don’t need to invest more money in LTE or 5G spectrum because customer can reuse the freed 2G/3G spectrum that they 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 has 3 components that make the entire process work:

Core Network voice function
This is a part of the operator Core Network.

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.

Redirect Service
This service allocates each SIM to the correct 2Greet Core Network function.
Features and benefits:

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Seamless integrationYou don’t need to change the architecture of your current network.
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VoWiFi includedIt automatically switches to WiFi when is available, unloading the network’s traffic.?
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Android devices2Greet works on ALL Androids without phone vendor support.
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SecurityThe voice is encrypted by default using SRTP?.
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ScalabilityYou can just install more functions into your network if needed.
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Constant supportYou can benefit from free support in the first 6 months after purchase.
Software specifications

SIP
Used for the communication between the 2Greet function and the operator’s network.

RTP
Connection for voice.

SIGTRAN
For MAP protocol.

CAMEL
For signaling.

HTTPS
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.
Requirements:
- CAMEL connection for the GMSC
- CAMEL subscription in the HSS / HLR user profile
- Google Firebase Cloud Messaging account
- TLS certificate