Register to get your API key. You'll need it in the ContactSender Pro SMS settings and in the Android gateway app on your phone.
✓ Account created! Your API key is below. Copy it now — it won't be shown again.
Next steps:
1. Enter this API key in ContactSender Pro → SMS Settings → Phone Gateway
2. Enter this API key in the Android Gateway App along with this server's URL
3. Enter your server URL in ContactSender Pro as the Gateway URL