Multi-Tech Systems MVP210-SS manual Phonebook Example

QS: Phonebook ExampleMultiVOIP User Guide

Phonebook Example

	One Common Situation
Boise Office

Area: 208		Voip Example. This company has offices in three
PBX System.
Main Number:	PSTN	different cities. The PBX units all operate alike.
333-2700		Notably, they all give access to outside lines using
90 extensions		“ 9.” They all are ‘smart’ enough to identify voip calls
		without using a special access digit (“ 8” is used in
204.16.49.73		some systems). Finally, the system operates so that
		employees in any office can dial employees in any
24-Channel
		other office using only three digits. Here are the
Digital VoIP		phonebooks needed for that system.
(MVP2410)

Inbound Phonebook

Each Inbound Phonebook contains two entries. The first entry (4 digits) specifies how incoming calls from the other voip sites will be handled if they go out onto the local PSTN. Essentially, all those calls come to the receiving voip with a pattern beginning with 1+area code. The local voip removes those four digits because they aren’t needed w hen dialing locally. The local voip attaches a “ 9” at the beginning of the number to get an outside line. The PBX then completes the call to the PSTN.

The second Inbound Phonebook entry (1 digit) is for receiving calls from company employees in the other two cities. The out-of-town employee simply dials 3 digits. The first of the three digits is uniquely used at each site and so acts as a destination pattern (Boise extensions are 7xx, Santa Fe extensions 2xx, Flagstaff extensions 6xx).

The local voip sees the pattern in its inbound phone book and notes the first digit (here either 2, 5, or 6).

To make the match, this first digit,

2, 5, or 6 is put in the “ Remove Prefix” field. This first digit must then be added back once again so that the voip will send all three digits to the PBX. The PBX can then dial the specific extension identified by the three-digit number.

Flagstaff Office

Area: 520

204.16.49.75

8-Channel Analog VoIP (MVP810)

PBX System. Main Number: 777-5600

30 extensions

Santa Fe Office

Area: 505

204.16.49.74

8-Channel

Analog VoIP (MVP810)

IP	PBX System.
Network
	Main Number:
	444-3200
	40 extensions
	PSTN

Each Outbound Phonebook contains two pairs of entries, two entries for each remote site. Whenever an out-of-town employee dials a 12-digit number beginning with the listed 5-digit destination pattern (9+1+area code) of another company location, the PBX hands the call to the voip system. The local voip strips off the “ 9” and directs the call to the IP address of the remote voip. The remote voip receives the call and hands it to its PBX. The PBX then completes the call to the PSTN .

The one-digit Outbound destination patterns pertain to 3-digit calling between company employees.

PSTN

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