Which GAI-Tronics phones are currently available as VoIP?

GAI-Tronics has the following weather and vandal resistant telephones available as VoIP:

WITH HANDSET

Commander - Plastic bodied telephone

Titan - Metal bodied telephone with door

HANDS-FREE

VR Help Point- Metal bodied, metal button telephone

Public Access Help Point - Metal bodied, large metal button telephone, Braille, Inductive loop