Multi-Tech Systems MVPFX2-2 - Manual (Page 127)

MultiVOIP FX User Guide Phone Book Configuration
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Site F calling Site D
A voip call from a Lincoln key extension to extension 3117 on the PBX in Pierre, South Dakota.
A. The required entry in the Lincoln Outbound Phonebook to facilitate origination of the call, would be “31”. The
string “1615492” would have to be added as a prefix. The call would be directed to the Pierre voip’s IP address,
200.2.9.9.
B. The corresponding entry in the Pierre Inbound Phonebook to facilitate completion of the call would be
161549231.
1. Caller at Lincoln picks up phone receiver, presses button on key phone set. This button has been
assigned to a particular voip channel (any one of the three FXS ports).
2. The caller at Lincoln hears dial tone from the Lincoln voip.
3. The caller at Lincoln dials 3117.
4. The Lincoln voip adds the prefix 1615492 and sends the entire dialing string, 16154923117, to the Pierre
voip
at IP address 200.2.9.9.
5. The Pierre voip matches the called digits 16154923117 to its Inbound Phonebook entry “161549231” .
6. The Pierre PBX dials extension 3117 in the office at Pierre.
Variations in PBX Characteristics
The exact dialing strings needed in the Outbound and Inbound Phonebooks of the MultiVOIP units will
depend on the capabilities of the PBX. Some PBXs require trunk access codes (like an “8” or “9” to access
an outside line or to access the VOIP network). Other PBXs can automatically distinguish between intra-
PBX calls, PSTN calls, and VOIP calls.
Some PBX units can also insert digits automatically when they receive certain dialing strings from a phone
station. For example, a PBX may be programmable to insert automatically the three-digit VOIP identifier
strings into calls to be directed to analog VOIPs.
The MultiVOIP offers complete flexibility for inter-operation with PBX units so that a coherent dialing
scheme can be established to connect a company’s multiple sites together in a way that is convenient and
intuitive for phone users. When working together with modern PBX units, the presence of the MultiVOIP
can be completely transparent to phone users within the company.