2024年2月27日 · PRI lines can work with an analog or mixed EPABX setup as well as an IP PBX system. A PRI can join two private branch exchange (PBX) systems together, increasing the number of available communication channels.

The Primary Rate Interface (PRI) is a telecommunications interface standard used on an Integrated Services Digital Network (ISDN) for carrying multiple DS0 voice and data transmissions between the network and a user.

A PRI phone system uses the Primary Rate Interface (PRI) standard to allow traditional telephone lines securing multiple voice and data signals. A PRI phone system operates through a physical connection to the public Switched Telephone Network (PSTN), and can support up to 23 concurrent voice channels per PRI trunk, and higher capacities via ...

2022年11月3日 · 什么是 PRI？ PRI（主速率接口）是一种电信技术，它使用 T 载波系统和与您的本地 PBX 的物理连接，为每条 PRI 线路提供对 23 个并发语音和数据通道的访问。 PRI 是作为传统 POTS（普通旧电话服务）网络的替代方案而开发的，后者一次只能处理一个电话呼叫。

Find out what a PRI (Primary Rate Interface) is, how it works, what are its channels, who uses it and how to connect to one.

2024年9月20日 · Primary Rate Interface (PRI) is the communication technology that connects the traditional phone system or PBX to the PSTN (Public Switch Telephone Network). It digitalizes phone connectivity using the Integrated Services Digital Network (ISDN), enabling traditional lines to transmit multiple data and voices simultaneously.

2024年4月24日 · Primary Rate Interface (PRI) is a telecommunication interface standard that delivers voice and data services between devices within a single connection. PRI is an Integrated Services Digital Network (ISDN) line that connects a Private Branch Exchange (PBX) to the Public switched telephone network (PSTN).

2018年12月5日 · A PRI is a form of Time Division Multiplexing (TDM), allowing you to send up to 23 separate communications via voice, data, or video. Channels are typically used by larger enterprise companies with a PBX system to help with access to the PSTN.

2023年10月9日 · For businesses needing multiple voice lines for calls, Primary Rate Interface (PRI) provides an efficient and cost-effective phone solution. PRI is a telecommunications service that utilizes Time-Division Multiplexing (TDM) to deliver up to 23 simultaneous 64Kbps channels over a single T1 line.

The Acme Packet 1100 and the Acme Packet 3900 support the ISDN Primary Rate Interface (PRI) for higher call-volume customers who want to connect PRI lines (t1,e1), analog trunk lines, analog phones (Extensions), Fax machines, and other analog communications devices to IP PBX/IP telephony systems. The PRI cards provide greater call-volume capacity than the Basic Rate Interface (BRI) card by ...