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## TopEngineering Telecommunications

You can use these calculators to calculate call minutes, Carrier to noise, lines, transmission, and more..

Call Minutes Calculator
The Call Minutes Calculator uses the number of minutes of traffic a trunk group is offered in one day to work out the number of required lines.

Call center calculator
Our Call Centre Calculator, which can be used to estimate how many call centre agents you require for each hour of an eight hour day, and how many trunks you need.

Carrier to noise vs Eb/No
Calculate Carrier to noise vs Eb/No.

Clearance Angle Calculator
Calculate clearance angle.

Coupler Calculator
Enter either the Coupling Loss or the Through Loss and the other will be calculated.

Engset Applet
Just like the Erlang calculator it calculates the relation between blocking, traffic and number of lines. Any two of those determine the value of the third.

Engset Calculator
The Engset Calculator can be used to work out how many lines you need for a trunk group if you know the Busy Hour Traffic which the trunk group is offered. It should be used instead of the Erlang B Calculator when the number of traffic sources is finite (less than ten times the number of lines).

Erlang B Calculator
The Erlang B Calculator can be used to work out how many lines you need for a trunk group if you know the Busy Hour Traffic which the trunk group is offered.

Erlang C Calculator
The Erlang C Calculator can be used to estimate how many agents are required in a call centre, if the quantity and length of incoming calls are known.

Erlang Calculator (new version with portrait)
In any system where a large population makes use of a finite number of resources, the blocking probability is given by the Erlang-B formula.

Erlangs to VoIP Bandwidth Calculator
The Erlangs and Bandwidth Calculator can be used to estimate the bandwidth which must be provided through an IP based to satisfactorily transport a given busy hour traffic level.

Extended Erlang B Calculator
The Extended Erlang B Calculator is similar to the Erlang B Calculator but takes retries into account. It can be applied to trunk groups from which no overflow facilities exist.

Friis Path Loss Calculator
This calculator computes the power that a receiving antenna receives for a given transmitting antenna for a given power for a distance greater than one wavelength for line of sight transmission. The greater the frequency the greater the path loss.

International Dialing/Area codes calculator
If you need to make a phone call to someone in another country and you are not quite sure how to dial the number, then this service should hopefully help you.

International Roaming Data Calculator
Use the sliders below to estimate your daily or monthly usage.

Lines to VoIP Bandwidth Calculator
This calculator can be used to estimate the bandwidth required to transport a given number of voice paths through an IP based network. Reverse calculations are also possible. These estimate the number of voice paths that can be transmitted though an IP network if the available bandwidth is known.

Calculates network mask by subnet range.

Online Calculator .:. Helix Antenna
Helical antennas invented by John Kraus give a circular polarized wave. They are one of the easiest to design.

Subnet Calculator - DNSQuery

SubnetOnline.com - Online TraceRoute
Traceroute is a computer network tool used to determine the route taken by packets across an IP network.

VSWR & Return Loss Calculator
Enter either the VSWR ratio or the Return Loss and the other will be calculated.

WWW Grid Calculator
This applet is a grid calculator. It calculates the slope, flow direction, flow accumulation and weighted flow accumulation for an elevation and weight grid.
applet

dB Calculator
Enter the number of watts or dB and the amount of dB to add or subtract.

eXtreme Outer Vision Tools
eXtreme PSU Calculator, eXtreme Flow Designer, CPU Overclock Calculator, CPU Temperature Calculator, °C/W Calculator, Temperature Conversion