User`s guide

Port Con guration

“How do I determine the number of ports I need and which MultiVOIP to order?”

You do not need a port for every telephone on the PBX system. You simply need to determine the calling

ratio to determine how many ports you need at each location. The following guidelines can help you:

1) If you are replacing tie/trunk lines, for every line that you support you need one port on the

MultiVOIP.

Ex. 4 Tie Lines = 4-port MultiVOIP (MVP410)

2) If you are not using tie/trunk lines, you can determine the ratio based on the location’s long

distance communication bills. First, determine what percentage of the bill is used for intra-

of ce communication (typically between 25% to 40%), then multiply the percentage by the

number of available PSTN lines at the location. The result will determine the minimum number

of ports needed.

Ex. Minneapolis, Corporate:

25% is intra-of ce calling. They have 16 lines.

25% x 16 = 4

Recommendation: 4-port MultiVOIP (MVP410)

Los Angeles Branch of ce:

30% is intra-of ce calling. They have 5 lines.

30% x 5 = 1.5

Recommendation: 2-port MultiVOIP (MVP210)

London Branch of ce:

40% is intra-of ce calling. They have 4 lines.

40% x 4 = 1.6

Recommendation: 2-port MultiVOIP (MVP210)

If you do not know what percentage of the phone bill is being used for intra-of ce communication,

the rule of thumb is 30%.

If you need more than 16 ports, we recommend the digital MultiVOIP (MVP2410 or MVP3010).

For a worksheet designed to help you calculate your customer’s bandwidth and port con guration

needs, reference our Con guration Guide located in the back of this primer.

Gatekeeper Models

“When do I use a MultiVOIP Gateway/Gatekeeper (-G Model)?”

The MultiVOIP Gateway/Gatekeeper (-G Model) includes an integrated gatekeeper to facilitate call

management in a Voice over IP network. These cost-effective MultiVOIP gateways provide centralized

phone book management as well as deliver the power to de ne and control how H.323 voice traf c is

managed over IP networks. With the integrated gatekeeper, network managers can con gure, monitor

and manage the activity of registered end points. In addition, they can set policies and control network

resources, such as bandwidth usage, to ensure optimal implementation.

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