I am trying to use twilio to call my guys on call for system alarms but i think it cannot reach the url because the thin client will not allow me to use port 80 or 443. how do i fix this?

My understanding is that Twilio for Alarm Notification and the VTScada Thin Client are part of the same server so having both configured should still show up as on service. You'll want to make sure that VTScada is the only service listening on the port you are using.

On my PC Running Command Prompt as an Admin:

C:\Windows\System32>netstat -ano
Proto  Local Address          Foreign Address        State           PID
TCP    0.0.0.0:80             0.0.0.0:0              LISTENING       31064
TCP    [::]:80                [::]:0                 LISTENING       31064

C:\Windows\System32>tasklist /FI "PID eq 31064"

Image Name                     PID Session Name        Session#    Mem Usage
========================= ======== ================ =========== ============
VTS.exe                      31064 Console                    5    273,928 K