What is Sipnetic?
Sipnetic is a free SIP softphone for Android developed by the same team behind Overt (formerly Groundwire). It offers excellent push notification support, TLS/SRTP encryption, and reliable background operation.
Key Features
Free with no ads Push notifications for incoming calls TLS/SRTP encryption Multiple SIP accounts
G.711, G.729, Opus codecs Call recording Contact integration Low battery consumption
Why Sipnetic? Unlike Zoiper Free, Sipnetic includes push notifications and encryption at no cost. It is the best free Android softphone available.
Configuring Sipnetic for IPComms
1Open Sipnetic Launch the app and tap Settings (gear icon) then SIP Accounts
2Add New Account Tap the + button to add a new SIP account
3Enter IPComms Settings
4Save and Connect Tap Save . The account should show as registered (green status).
Building this? Your PBX will need a number
Find a phone number for your trunk
Local numbers $1.50 a month, toll-free $2.00, $1.00 one-time setup. Pick one here and it carries into signup.
Enter an area code, or wait a moment for numbers near you.
Show more More numbers, porting and E911 in the portal
Outbound US and Canada $0.010 /min
Inbound $0.009 /min
Local number $1.50 /mo
Per channel $0 no set limits Sign up now or see the full rate table . No contracts.
Enable Push Notifications
Push notifications allow Sipnetic to receive incoming calls even when the app is closed, saving battery while staying reachable.
1Go to Settings > SIP Accounts > [Your Account]
2Scroll to Push Notifications and enable it
3Allow all notification permissions when prompted
Note: Push notifications require IPComms to support the push proxy. Contact support@ipcomms.net if you have issues receiving calls when the app is closed.
Codec Settings
Configure codecs for optimal call quality with IPComms.
Battery Optimization
Prevent Android from killing Sipnetic in the background:
Go to Android Settings > Apps > Sipnetic > Battery
Select "Unrestricted" or "Don't optimize"
On Samsung: Disable "Put app to sleep"
On Xiaomi: Enable "Autostart" permission
Troubleshooting
Registration Failed Check username/password. Ensure domain is sip.ipcomms.net. Try UDP instead of TLS.
No Audio / One-Way Audio Enable STUN server: stun.ipcomms.net. Check microphone permissions.
Calls Don't Ring When App Closed Enable push notifications. Disable battery optimization. Check notification permissions.