isdnvboxclient software package provides ISDN utilities - answering machine client, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install isdnvboxclient
isdnvboxclient is installed in your system.
Make ensure the isdnvboxclient package were installed using the commands given below,
$ sudo dpkg-query -l | grep isdnvboxclient *
You will get with isdnvboxclient package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Utilities |
| Package | isdnvboxclient |
| Version | 1:3.25+dfsg1-3.7ubuntu1 |
| Description | ISDN utilities - answering machine client |
| Sub Section | Utils |