You might want to force a particular Twilio number to just call another number. Just use the following webhook.
/helpline-search.php?ForceNumber=8885551212 or for extension dialing
w is a 1 second pause.
In some cases, when using 1 second pauses you may want to indicate that there is something happening to the end user as there will be a delay.
If you would like there to be a CAPTCHA to prevent robocalls + fax machines, you can add this to your query.
And/or, if you would like to have a basic waiting message, but no CAPTCHA use.
These options can be combined.