Start call from command line

[BennyRe]

On regular Skype installations you can start a call on the command line with

skype --callto contact-name

I'm not able to achieve this with Skype running in a Docker container.
I tried running the command from a shell from the host system, from a shell within the container and with the docker exec command but the only thing that happens is an empty 'Terms of Use' window appearing.

Is it somehow possible to make this work?

[rprots]

docker exec --user skype -it <CONTAINER-ID> skype --call echo123