Multitech MVPFXS-24 User's Guide download pdf (Page 93)

MultiVOIP FXS User Guide Phone Book Configuration

Phonebook Examples

The following example demonstrates how Outbound and Inbound PhoneBook entries work in a situation

of multiple area codes (as in the Minneapolis metro area). This example also illustrates that MVPFXS voips

allow remote callers access only to specific phone stations connected to the MVPFXS voip and do not allow

remote callers access to the local PSTN in which the MVPFXS unit is located. Consider a company with

offices in Minneapolis and Baltimore. The system depicted is SIP-only. In the Minneapolis office, an

MVPFX2-8 unit is used and it affords both FXS and FXO interfaces. By contrast, in the Baltimore office, an

MVPFXS-24 voip is used adn it offers the FXS interface only.

2 Site Example

Notice first the area code situation in those two cities: Minneapolis’s local calling area consists of multiple

adjacent area codes; Baltimore’s local calling area consists of a base area code plus an overlay area code area

code 443), but, since the voip used in Baltimore is FXS-only, it does not offer access to the local PSTN. That

is, Minneapolis voip callers can call phone stations in the Baltimore office only; they cannot call into the 410

or 443 area codes using the voip system.

Mpls

61 2

Suburbs

763

St. Paul

& Suburbs

651

SW Suburbs

952

Company

VOIP/PBX

Site

Baltimore

410

Company Office

ha s M VP FXS -2 4 V OI P

with FXS Terminal Block

...

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Multitech MVPFXS-24 User's Guide Page 93