Multitech MULTIVOIP MVP-810ST User's Guide download pdf (Page 403)

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MultiVOIP User Guide E1 PhoneBook Configuration

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Site D calling Site C

1. Dial 901189435632.

2. “9” gets outside line. On some PBXs, an “8” may be used to

direct calls to the VOIP, while “9” directs calls to the PSTN.

However, some PBX units can be programmed to identify the

destination patterns of all calls to be directed to the VOIP.

3. PBX at Site D is programmed to divert all calls made to the 118

area code and exchange 943 into the VOIP network. (It would

also be possible to divert all calls to all phones in area code 118

into the VOIP network, but it may not be desirable to do so.)

4. The MVP3010 removes the prefix “0118” and adds the prefix

“101#” for compatibility with the analog MultiVOIP’s

phonebook scheme. The “#” is a delimiter separating the analog

VOIP’s phone number from the digits that the analog VOIP

must dial onto its local PSTN to complete the call. The digits

“101#9435632” are forwarded to the Site B analog VOIP.

5. The call passes through the IP network (in this case, the Internet).

6. The call arrives at the Site B VOIP. This analog VOIP receives

this dialing string from the MVP3010: 101#9435632. The analog

VOIP, seeing the “101” prefix, uses its own channel #1 (an FXO

port) to connect the call to the PSTN. Then the analog VOIP

dials its local phone number 9435632 to complete the call.

NOTE: In the case of Reading, Berkshire,,

England, both “1189” and “1183” are

considered local area codes. This is, in a

sense however, a matter of terminology.

It simply means that numbers of the

form 9xx-xxxx and

3xx-xxxx are both local calls for users at

other sites in the VOIP network.

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