Create/run a Server-side Applescript with Variables

Utilizing a contact management db with a SIP-based (VOIP) phone system.

This runs on FMPS  9-12 currently. I know I can convert 12 to run on the server, but is there a way to do this on 9 or 10?

We have click-thrus on screen, for the user to have his phone automatically dial a phone# in the current record (he chooses any of the 8 fields which house phone #s)....

The method of this is run thru an Applescript, residing on the client machine and running from the client machine.  It feeds a code to the local VOIP server, which then triggers the phone call.

Several challenges: new client boxes have to be 'key'd" to the VOIP server, they also sometimes "glitch" (we think due to machine speed/delays), resulting in missed dials.

How would one tell the SERVER to run the applescript, and then have the variables passed TO the server?

Essentially, the script does the following:

SetVariable ($ext; Value:AcctNameTable:UserExtensionPrefered)    (the extension dialing "from")

SetVariable ($NUMBERTODIAL:ContactPreferedDial)                  (the phone# we're dialing "to")

SetVariable ($scriptpath; Value: "/funnyscripts/dialscript.sh")       (script on local HDD that puts all together)

Perform Applescript ("do shell script "" & $scriptpath & "" & $ext" & "" & $NUMBERTODIAL")

I've simplified this a bit, but that's really it... the shell resides on the local user HDD (another factor inhibiting scaling)....

How would I best approach stuffing this on the server and having it do the script?

EDIT:  Perhaps I should also note the actual shell script:

It is essentially creating a filenname, filling it with various needed parts (channel, context, priority level, ext#, callerID, and number to dial.

Then it does a copy (scp) of that to the PBX server, placing it into an active phone call folder. (the PBX system constantly processes said folder).

**IF** I could simply install the script on the server, pass the variables to it, and ahve the server run the script, any scaling issues would disappear (I think)..

thoughts?