Garland VoIP Phone System. At VoIP Central Garland, our solutions lead to positive results that not only meet expectations but actually go beyond them. The impact is immediate and long-lasting at the same time, as we are able to help businesses reach their full potential. Whether it’s in introducing their products and services to a new audience or communicating with other businesses, we are able to deliver. And we’ve proven that we’re capable of delivering consistently and efficiently.