https://www.upwork.com/o/profiles/users/_~0181f0ec80a7b0d89d/



Overview

Asterisk/FreePBX/Elastix/Trixbox, a2billing, IVR, CRM, TTS, ASR, Virtual PBX, VAS, Voice Broadcast, SMS, VoIP, Contact & Call Center, Asterisk, Consulting, Development, click2call, callback