USSD Gateway Setup on Restcomm

I need a USSD gateway set up on Restcomm to facilitate customer service. The gateway should support GSM and LTE networks and provide functionalities for account information and service subscriptions.

Key Requirements:
- Support for GSM and LTE networks
- Customer service functionalities:
- Account information
- Service subscriptions

Ideal Skills and Experience:
- Experience with Restcomm
- Knowledge of USSD gateway setup
- Familiarity with GSM and LTE networks
- Background in developing customer service USSD applications