How to get VoIP working on a 4G/5G Internet Connection Successfully
with Crazytel.
You should also follow this article if your internet
connection is CGNAT. VoIP on Mobile internet connections can be reliable if you
make some slight changes to your network setup. Because there are so many
devices on the market this is a basic guide that will point you in the right
direction.
Steps: Setup VoIP on 4G/5G Connections
-
1. Disable SIP ALG on your Router/Modem.
- 2. Use CrazyTel’s alternative SIP Port: 25160
instead of default 5060.
- 3. Use TCP instead of UDP protocol if possible.
- 4. *Most Important* Change your “Registration
Timer” In your VoIP device/Software to 60 seconds. By default, most devices are
set as 3600 by default. If this is not changed, you will have incoming call
dropouts / engaged Signals.
