Voice Preemption, Introduction | Hypertec ISDN 10T Router guide

Concepts and Principles of Operation

DHCP

Managing IP addresses in an organization is often a headache for the MIS staffs. To ease the IP address management, the Dynamic Host Configuration Protocol (DHCP) is invented by IETF. DHCP protocol works in a client server configuration. One or more DHCP servers may be installed in the network. A workstation running DHCP client software (eg. Windows 95), when configured to request IP addresses from the network, will send a DHCP request to the network asking for IP address assignment. In addition to assigning the IP address, the DHCP server can also provide other TCP/IP configuration data such as IP sub-net mask, default gateway IP address, DNS server IP address(s). Hypertec ISDN 10T Router with DHCP enabled, can function as a DHCP server.

Voice Communication Service

Voice Preemption

If you pick up a phone while a 2-channel data call (Multilink PPP bundle) is active, the Hypertec Router drops one of its data links to service the voice call unless the preemption is configured as disabled. An AT&T 5ESS switch limitation prevents users of AT&T Customer Multi-point or Point-to- Point service from receiving voice calls, when both data channels are in use. Outgoing calls are not affected by this switch limitation, because they are controlled locally at the Hypertec Router . If you are using AT&T Multi-point or Point-to-Point service, and you want to make sure that voice calls are received, you should configure the link encapsulation protocol to PPP for both Internet and Intranet profile. However, this limits the Hypertec Router to 1-channel data calls, so each data call can handle a maximum of 64 kbps. The voice call will not be accepted if there is two 1-channel data calls in active.

Basic Rate ISDN Provisioning for United States and Canada

Introduction

This document outlines the steps required to successfully order the correct BRI ISDN service from your service provider for the Hyperte Router .

Line Provisioning Service

Line provisioning service can supply the ISDN provisioning information you require. This information is available at the following number (US and Canada only):

1-408-867-2045

Ordering the ISDN Line

You can order many different variants of ISDN. To ensure that you get the correct variant for the Hypertec Router, you need to give your service provider certain information. In return, they will tell you the correct parameters to use when configuring the Hypertec Router .