Install libbellesip0 by entering the following commands in the terminal:
sudo apt update sudo apt install libbellesip0
Description:
SIP stack from the Linphone team
Belle-Sip is a new SIP stack (RFC3261) developed by the Linphone team. . Belle-Sip supports multiple transports at the same time, has a dual IPv6 and IPv4 stack, is fully asynchronous and implements the +sip.instance and alias parameters. It also handles network disconnections better, offers a privacy API and supports rich presence. . SIP/TLS is handled by mbed TLS (by way of bctoolbox), not OpenSSL.
Homepage: https://www.linphone.org
Version: 1.6.3-2
Section: universe/libs