"Solution edit: received better connection through: turn phone off. take sim out. turn phone on. turn phone off. put sim in. turn phone on. seemed to refresh it's band or blocks at tower side. symptom was only call sending party had clear voice connection. receiver was very low latency. purpose was (assumed) faulty tdma frequency block allocation."
Here's my "chat" submittal:
Calls are breaking up. Even with Ting support number outside on my LG-H700 using T-mobile GSM.