Multitech MVPFXS-24 User's Guide download pdf (Page 105)

MultiVOIP FXS User Guide Phone Book Configuration

105

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.

Site D calling Site E

A voip call from a Pierre PBX extension to extension 427 on the voip in Cheyenne, Wyoming.

1. Dial 8427.

2. The “8” accesses the voip network.

3. The Pierre PBX passes the digits 427 to the voip.

4. The call arrives at the Site E voip and goes to channel 7, which is extension 427.

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.

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Multitech MVPFXS-24 User's Guide Page 105