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Appendix B

Understanding Telephony Routing and

Translations

This section provides a basic understanding of how to provision telephony style translations interworking with traditional circuit-switchednetwork routing.

Topics in this section:

•“Telephony routing concepts” on page 149

•“Telephony routing terminology” on page 152

•“Sample dial plan for telephony routes” on page 155

•“Telephony route provisioning scenario and examples” on page 158

Telephony routing concepts

The basic function of any communication equipment is routing, and SIP-based systems add additional requirements to routing when compared to traditional circuit-switched network-based routing. Routing in the VoIP networks adds the complexity of integrating with the traditional circuit-switched networks and domain-based VoIP/SIP networks.

Subdomains

The concept of subdomains allows the domain administrator to group users into a smaller routing groups. For example, Nortel Networks can have a single system supporting a Richardson domain and an Ottawa domain. Users within Nortel Networks are assigned to subdomains, but can be reached by just using the top domain. The concept of SIP subdomains is similar to the email domains used within an enterprise.

SIP Provisioning Client User Guide

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Nortel Networks NN10043-113 manual Appendix B Understanding Telephony Routing Translations, Telephony routing concepts
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NN10043-113 specifications

Nortel Networks NN10043-113 is a versatile and robust networking solution designed to meet the demands of modern enterprise environments. As part of Nortel's extensive portfolio, this product highlights the company’s commitment to delivering high-performance networking solutions suitable for a variety of applications.

One of the main features of the NN10043-113 is its exceptional scalability. This device is designed to accommodate growing business needs, ensuring that organizations can expand their network without the hassle of significant infrastructure overhauls. The scalability of the NN10043-113 enables it to support a wide range of devices and applications, making it an ideal choice for businesses of all sizes.

In terms of technologies, the NN10043-113 incorporates advanced Ethernet switching capabilities. This allows for high-speed data transfer across the network, ensuring minimal latency and improved overall performance. The device also supports Power over Ethernet (PoE), enabling the delivery of power to connected devices like IP phones and wireless access points, thereby simplifying installation and reducing the need for additional power sources.

Another noteworthy characteristic is the NN10043-113's robust security features. As cyber threats continue to evolve, safeguarding network accessibility and data integrity has become paramount. This device comes equipped with advanced security protocols, including virtual LAN (VLAN) support, which allows for the segmentation of network traffic, as well as access control lists (ACLs) to restrict unauthorized access.

Moreover, the NN10043-113 features built-in Quality of Service (QoS) functionalities. This ensures that critical applications receive the bandwidth they need, prioritizing voice over data and guaranteeing seamless communication across the network. High availability is also a key characteristic, with redundant power supplies and failover capabilities to provide uninterrupted service.

The Nortel Networks NN10043-113 stands out with its management capabilities. Administrators can easily configure and monitor the device through a web-based interface, simplifying network management and reducing the chance of human error.

In summary, the Nortel Networks NN10043-113 is an advanced networking solution characterized by its scalability, high-performance Ethernet switching, robust security features, quality of service, and user-friendly management capabilities. These attributes make it a reliable choice for organizations seeking to enhance their network infrastructure while supporting their growth and security needs.
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