Build CTI connector between mobile application and pbx

I am looking for a skilled developer to build a CTI connector between my mobile application and my Yeastar PBX. The main function I want the CTI connector to perform is Click-to-Dial. The application will be used on both iOS and Android platforms.

Ideal Skills and Experience:
- Experience in building CTI connectors between mobile applications and PBX systems
- Proficiency in IP PBX
- Knowledge of iOS and Android development
- Strong understanding of Click-to-Dial functionality and import CDR data to app
- Ability to ensure compatibility and functionality across both iOS and Android platforms.