Install libgsm0710mux3 by entering the following commands in the terminal:
sudo apt update sudo apt install libgsm0710mux3
Description:
Library for implementing GSM 07.10 multiplexing servers
This library supports implementing a GSM 07.10 Multiplexing Server. It requires libgsm0710 for the protocol engine and glib. . You may either write standalone programs (e.g. communicating over D-Bus and using ptys) or embed the library in your GSM server to improve performance. . This package is part of the freesmartphone.org software stack and is targeted for smartphones.
Homepage: http://www.freesmartphone.org/
Version: 0.12.0-8
Section: universe/libs