*astTECS IP Phones for Office, Call Centers & other business organizations is user friendly with advance features at affordable price. They feature unprecedented plug-and-play deployment, HD voice, Multiple line appearances, contextual soft keys, phone books, DND and advanced applications. The ergonomically-designed phones are equipped with essential features that the modern business environment demands and primarily targeted towards small business users and large office applications. The unit fully supports all of the major SIP-based IP PBX / Softswitch / IMS platforms.