Trunk 30B + D analog trunk call center platform

Cheap integrated scale 30B + D trunk line access services for the marketing center, customer service centers, office applications and provide the group (usually used in conjunction with call center systems), also known as ISDN-PRI, namely primary rate ISDN, there 30 B channels and one D channel, each B channel and D channel are 64Kbit / s, total 1.920Kbit / s. Each PRI interface can become an independent user group PRA, multiple PRA interfaces can also form a user group is to provide a connecting digital switches, LAN, the host computer and other devices to the network of economic choices. 30B + D trunk access to ISDN-based, ISDN namely integrated digital telephone network (IDN), can provide end to end digital connectivity to support including voice and non-voice including a variety of business, the existing telephone network open a set of voice, data and video communication as one integrated service. The user can select the basic rate (2B + D) and primary rate (30B + D) business based on business needs. 30B having 30 64K voice channels. 30B + D trunk access is mainly used in: (1) digital telephone switching (30 64k of B channel access) + narrowband Internet access services (128k bandwidth); (2) information commercial agency headquarters and the divisions between the connection into the straight channel; (3) the use of a dedicated videoconferencing equipment among large enterprises, bundled six B channels (384k) enables real-time image transmission videoconferencing services, bundled two B channels (128k) enables real-time image transmission The video phone service, ISDN (30B + D) type of business include: clothes, dresses, transfer, rename, disassemble and so on. ISDN (30B + D) business unit is only open to users. ISDN (30B + D trunk access) newly installed means that the user needed to apply for possession of numbers ranging from 1 to 30, mainly used in data communications, video, business and computer information services, to achieve Internet and Shilingtong high-speed access, local office connectivity, multipoint TV, DDN backup, docking and other functions and DDN transmission business.