Chapter 2 Setting Up Your Cisco Unified Videoconferencing 3500 Gateway

Requirements for Installing of the Cisco Unified Videoconferencing 3527 PRI Gateway

Table 2-2 Cisco Unified Videoconferencing 3527 PRI Gateway Rear Panel Components

Component

Description

ACT LED

Lights green to indicate that there are active calls in the gateway.

 

 

D-Ch LED

Lights green to indicate that the PRI line is enabled and a carrier signal is

 

detected.

 

 

ALARM LED

Displays alarm events for the PRI line.

YELLOW —Lights yellow when there is a loss of frame alignment at the remote side.

ORANGE—Lights orange when there is a loss of frame alignment in the gateway.

PRI LINE connector

RJ-45 connector that provides the PRI line connection for the gateway ISDN

 

PRI port.

Cisco Unified Videoconferencing 3522 BRI Gateway RTM

Figure 2-3shows the rear panel components of the Cisco Unified Videoconferencing 3522 BRI Gateway unit. Table 2-3describes these components.

Figure 2-3 Cisco Unified Videoconferencing 3522 BRI Gateway: Rear Panel

 

 

 

1

2

 

 

 

3

4

BRI-4

BRI-3

BRI-2

BRI-1

ACT

157262

Table 2-3 Cisco Unified Videoconferencing 3522 BRI Gateway Rear Panel Components

Component

Description

 

 

ACT LEDs

Lights green to indicate that there are active calls in the gateway on the

 

specified BRI line.

 

 

BRI LINE connectors

RJ-45 connectors that provide the BRI line connections for the specified

 

gateway ISDN BRI port.

 

 

Requirements for Installing of the Cisco Unified

Videoconferencing 3527 PRI Gateway

These are the requirements for installing the Cisco Unified Videoconferencing 3527 PRI Gateway unit.

Proper clearance at the sides of the unit to allow adequate ventilation, and at least 20 cm clearance at the back of the unit to allow access to cable connections

A PC with a serial port and terminal emulation software to assign the Cisco Unified Videoconferencing 3527 PRI Gateway unit an IP address

Dedicated IP address for the Cisco Unified Videoconferencing 3527 PRI Gateway unit

Installation and Upgrade Guide for Cisco Unified Videoconferencing 3522 BRI Gateway and 3527 PRI Gateway Release 5.6

 

OL-17010-01

2-3

 

 

 

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Cisco Systems manual Cisco Unified Videoconferencing 3522 BRI Gateway RTM

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.