NEWARK, N.J.--(BUSINESS WIRE)--Panasonic System Communications Company of North America, a leading provider of business telephone systems, today announced Broadsmart, a telecom service provider of business-class SIP/IP Trunking, Cloud Unified Communications and Data solutions, has joined Panasonic’s SIP Preferred partner program. In an effort to deliver advanced VoIP solutions for a variety of end-user customers, the alliance between Panasonic and Broadsmart will provide a new, complete hosted