FreePBX SIP Trunk Configuration
Once you have logged in to your buyer account and purchased a route from Market View, you'll receive an email confirmation with provider Rates, TelecomsXChange SIP signaling IP/Domain, and Tech prefix (Each provider on telecomsxchange has a unique prefix) make sure you setup outgoing prefix correctly in your PBX in order for calls to be routed properly to the correct provider.
To setup your FreePBX to send calls to TelecomsXchange is pretty straight forward:
Sip trunk configuration :
type=peer host= sip01.telecomsxchange.com progressinband=never port=5060 nat=yes insecure=port,invite ignoresdpversion=yes dtmfmode=rfc2833 context=from-trunk disallow=all allow=ulaw&amp;amp;alaw qualify=yes