Cisco Systems 3527 PRI, 3522 BRI manual About Multimedia Conferencing

Models: 3527 PRI 3522 BRI

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Chapter 1 Functionality

About Cisco Unified Videoconferencing 3500 Gateway Applications and Topologies

Table 1-2

Cisco Gateway Feature Specifics (continued)

 

 

 

 

 

Feature

 

Cisco Unified

Cisco Unified

 

 

Videoconferencing 3527 PRI Gateway

Videoconferencing 3522 BRI Gateway

 

 

 

 

Bonding calls

 

Internal Imux providing calls at 128

Internal Imux providing calls at 128

 

 

Kbps (2B) up to full PRI of

Kbps (2B) up to 512 Kbps (8B) using

 

 

1472 Kbps (23B) for T1 and up to full

bonding mode 1.

 

 

PRI of 1920 Kbps (30B) for E1 using

 

 

 

bonding mode 1.

 

 

 

Parallel dialing for bonded calls.

Parallel dialing for bonded calls.

 

 

 

Internal IVR capacity

30 simultaneous calls

8 simultaneous calls

 

 

 

 

About Cisco Unified Videoconferencing 3500 Gateway Applications and Topologies

The Cisco Unified Videoconferencing 3500 Gateway supports multimedia conferencing by translating between H.323 and H.320 protocols. Examples of network applications that use the gateway include:

Multimedia conferencing (see the “About Multimedia Conferencing” section on page 1-6)

Point-to-Point conferencing (see the “About Point-to-Point Conferencing” section on page 1-7)

Multipoint conferencing (see the “About Multipoint Conferencing” section on page 1-8)

IP networking (see the “About Gateway IP Network Connections” section on page 1-8)

ISDN networking (see the “About Gateway ISDN Network Connections” section on page 1-8)

About Multimedia Conferencing

The Cisco PRI gateway and BRI gateway enable H.323 endpoints on the IP network to communicate with an H.320 terminal, an ISDN phone, or a regular phone on a circuit-switched public network without having to connect directly to these networks. The gateway allows all IP network terminals to support video conferences without connecting every desktop computer to an ISDN line (see Figure 1-1).

Installation and Upgrade Guide for Cisco Unified Videoconferencing 3522 BRI Gateway and 3527 PRI Gateway Release 5.5

1-6

OL-14910-01

 

 

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Cisco Systems 3527 PRI, 3522 BRI manual About Multimedia Conferencing

3527 PRI, 3522 BRI specifications

Cisco Systems has long been a leader in networking and telecommunications equipment, and its BRI (Basic Rate Interface) and PRI (Primary Rate Interface) products are essential components in enabling businesses to manage voice and data communications efficiently. Notable models such as the Cisco 3522 BRI and 3527 PRI have earned recognition for their robust performance and versatile features.

The Cisco 3522 BRI is designed to deliver high-quality voice and data services over ISDN (Integrated Services Digital Network) connections. With two B channels for voice or data transmission, each supporting up to 64 Kbps, this device is ideal for small to medium-sized businesses that require reliable communication solutions while maintaining cost-effectiveness. The Cisco 3522 BRI supports multiple protocols, making it a flexible choice to adapt to various network environments.

On the other hand, the Cisco 3527 PRI supports up to 30 B channels, thereby significantly increasing the capacity for voice calls and data transfer. This scalability makes the 3527 PRI suitable for larger organizations that demand higher throughput and call handling capability. It operates over T1 and E1 lines, allowing businesses to leverage existing infrastructure while improving operational efficiencies. Additionally, the 3527's advanced features, such as call processing and load balancing, contribute to a seamless communication experience.

Both devices support a range of technologies that enhance functionality and performance. They are equipped with Call Admission Control (CAC) to optimize bandwidth use and reduce congestion during peak traffic. Cisco's VoIP technology, including features such as voice provisioning, fax over IP, and QoS (Quality of Service) mechanisms, ensures voice clarity and reliability.

Security is paramount, and both the 3522 and 3527 incorporate various protocols such as SRTP (Secure Real-Time Transport Protocol) to protect voice communications against unauthorized access. Furthermore, integration with Cisco's unified communications offerings allows for a more cohesive communication strategy, ensuring that users can take advantage of collaboration tools and data services.

In conclusion, the Cisco 3522 BRI and 3527 PRI models stand out with their impressive feature sets and technologies, making them an excellent investment for businesses needing reliable, scalable, and secure voice and data communication solutions. Choosing Cisco means embracing a future-proof solution that can grow with your organization's communication needs.