Asl installation problem

Hi guys I’m trying to install a dvswitch system, I’ve read that i should start with the Allstarlink installation but when I run the install command
apt-get istall allstarlink -y im met with this error

The following packages have unmet dependencies:
allstarlink : Depends: asl-asterisk but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

I also tried to install the missing dependencies and got another error

root@dvlink:/tmp# apt-get install asl-asterisk
Reading package lists… Done
Building dependency tree
Reading state information… Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
asl-asterisk : Depends: libcurl3 but it is not installable
Recommends: sox but it is not going to be installed
Recommends: bc but it is not going to be installed
Recommends: dnsutils but it is not going to be installed
Recommends: bison but it is not going to be installed
Recommends: curl but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
root@dvlink:/tmp#

Ca anyone assist me in solving this issue?

thanks and regards
Dexter
9Y4C