Avaya Mobile Communication 3100 Planning and Engineering Manual do Utilizador descarregar pdf (Página 16)

16 Planning

HTTP Signaling

For HTTP signaling, make the following assumptions:

• Each mobile client use exchanges approximately 30 megabytes (MB)

of signaling data with the MCG 3100 each month.

•

With 22 business days per month, each mobile user exchanges

approximately 1.36 MB of signaling data per day.

•

Signaling traffic takes place for 7.5 hours each business day.

•

In the context of streaming data, 1 MB = 1000

(not 1024

as in the

context of computer memory).

•

1.36 MB/7.5 hours = 181 818 bytes/hour = 1 454 545 bits/hour =

404.04 bits/second

Using the above assumptions, if you have X users, then the traffic on

the MCG 310 is 404.04 bits/second * X. For 1500 users, the bandwidth

required is approximately 606 kilobits per second (kbit/sec).

SIP signaling bandwidth requirements

For the purposes of data modeling, assume that SIP signaling is roughly

equivalent to HTPP signaling.

So, using the example of 1500 users, SIP signaling should consume

another 600 kilobit/s, assuming an even distribution of calls through the

business hours in a given month.

RTP media bandwidth requirements

Each call involving a mobile client has two media streams. One stream

goes from the source to the destination through the MCG 3100, and the

other goes from the destination to the source through the MCG 3100.

For each call, assuming a G.711 transmission of 64 kilobit/s, media

consumes 256 kilobit/s. For 1500 simultaneous calls, this equates to 256

kilobit/s * 1500 = 354 megabit/sec.

A 100 megabit network interface supports at most 390 simultaneous calls.

To support signaling and provide a buffer, round this number down to 350

calls.

CS 1000 Dialing plans and telephone numbers

MC 3100 supports telephone numbers in the following formats

• Dial strings, where the user enters all the digits to be dialed. Examples

of dial strings include 2356, 63432356, 93432356 and 3432356.

• E.164 Fully Qualified International Numbers, where telephone

numbers start with the plus (+) symbol. E.164 Fully Qualified

International Numbers are also known as "plus numbers". Examples

Nortel Mobile Communication 3100

Nortel Mobile Communication 3100 Planning and Engineering

NN42030-200 03.04 17 July 2009

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