Always get busy signal when doing *67

[LouisWilen]

By the way, I finally noticed in the SPA-2102 manual that "Vertical Service Activation Codes are automatically appended to the dial-plan."

Therefore, I was able to remove the *nn from my dial plan. My dial plan is now set to:

(123S0 | 011[2-9]x.S5 | 1[2-9]xx[2-9]xxxxxxS0 | [2-9]xx[2-9]xxxxxxS0 | [2-9]11S0)

What isn't clear to me is if specifying VSACs has any other effect. Are they just a convenient method of adding values to the dial plan, or do they actually cause something additional to happen in the ATA? For example, if a star code is set in the VSAC list and the star code is entered at a phone, does the ATA process the star code internally in some way?