T1 versus e1 telephony environments – Multi-Tech Systems MVP210-SS User Manual

Page 206

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T1 Phonebook Configuration

MultiVOIP User Guide

206

T1 Versus E1 Telephony Environments

Phonebooks for Series II analog MultiVOIP units (MVP130,

MVP130FXS, MVP210, MVP410, and MVP810) can be operated in

either a North American telephony standards environment (potentially

operating with T1 digital MultiVOIPs) or in a European telephony

standards environment (potentially operating with E1 digital

MultiVOIPs). The configuration of the phonebook is the same in either

case. However, because the telephony environment is different in each

case and the examples used here must reflect those differences, we have

separate chapters for phonebook configuration in North American (T1)

environments (Chapter 6; this chapter) and for that in European (E1)

environments (Chapter 7). Consult the chapter that best fits the needs

of your voip system.

Configuring T1 (NAM) Telephony
MultiVOIP Phonebooks

When a VoIP serves a PBX system, it’s important that the operation of

the VoIP be transparent to the telephone end user. That is, the VoIP

should not entail the dialing of extra digits to reach users elsewhere on

the network that the VoIP serves. On the contrary, VOIP service more

commonly reduces dialed digits by allowing users (served by PBXs in

facilities in distant cities) to dial their co-workers with 3-, 4-, or 5-digit

extensions as if they were in the same facility.
Furthermore, the setup of the VoIP generally should allow users to

make calls on a non-toll basis to any numbers accessible without toll by

users at all other locations on the VoIP system. Consider, for example,

a company with VOIP-equipped offices in New York, Miami, and Los

Angeles, each served by its own PBX. When the VOIP phone books are

set correctly, personnel in the Miami office should be able to make calls

without toll not only to the company’s offices in New York and Los

Angeles, but also to any number that’s local in those two cities.
To achieve transparency of the VoIP telephony system and to give full

access to all types of non-toll calls made possible by the VOIP system,

the VoIP administrator must properly configure the “Outbound” and

“Inbound” phone-books of each VoIP in the system.
The “Outbound” phonebook for a particular VoIP unit describes the

dialing sequences required for a call to originate locally (typically in a

PBX in a particular facility) and reach any of its possible destinations at

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