Make sure you change your settings to optimize for the 3G network. Here are some suggestions:
- change CODEC to one requiring less bandwidth, i.e set audio quality to 0
- turn continuous RTP on
- change serial connections to 9600, which is sufficient for the K3 Twin
Play around with these 3 until you are satisfied:
- increase rx jitter buffer to min 10
- increase rx jitter delay to min 12
- audio packet size 20 or 40
73,
Mitch DJ0QN / K7DX