IPv6 (Internet Protocol version 6) is a new version of Internet Protocol used for data transmission over the Internet. The main difference between IPv6 and its predecessor, IPv4, is a much larger number of available IP addresses, allowing more devices to connect to the Internet. While IPv4 uses 32-bit addresses (e.g., 192.168.1.1), IPv6 uses 128-bit addresses (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334).
Most SIP clients don't work with IPv6 protocol. Due to incompatibility between the internet protocol and SIP client, these issues may occur:
- Registration problems
- Connection issues
- Data transmission delays or unstable voice communication
We're pleased to announce that the latest update of Ringostat Smart Phone for PC and mobile devices now includes full IPv6 protocol support. This improves compatibility and performance if your network uses IPv6.
You can download or update the app for your platform using the links below:
iOS
You can check your protocol version at https://2ip.me/en/. Below is an example showing an IPv4 address:
And here's IPv6:
If you're using IPv6 but continue using another SIP client, you'll need to change the internet protocol to resolve the issue.
How to switch from IPv6 to IPv4 when using 4G/5G with mobile operators?
Smartphone settings (mobile internet):
1.1 For Kyivstar mobile operator to provide IPv4 on iPhone:
Go to phone settings, select cellular data
Under SIM cards, select Kyivstar
In cellular network settings, change "internet" to "ks" in access point settings, it should look like this:
1.2 For Android:
Go to Settings
Connections
Mobile networks
SIM card settings
Select Access points (APN)
Choose Kyivstar internet
Select APN protocol - IPv4, it should look like this:
After all changes, restart your phone!
Switching to 3G internet might also help, but note this will slightly slow down internet speed. You can try enabling 3G, restore settings, and restart your phone.
2. Contact operator: If phone settings don't help, contact your internet provider's technical support (or mobile operator for mobile internet) and request changing IP type from IPv6 to IPv4. They may be able to do this on their end.