Atin, you are not completely correct in the way you describe FTELs product working. FTEL does not have to dial an ISP in fact they are NOT dialling an ISP they are dialing a DVG.
It is a feature of the DVG that a Corporation can place these units in house and use their Intranet to route these calls.
From the on-line Brochure Hghlighing is mine
THE TEMPEST can be Central office or Customer
Premises based. The physical hardware can take in
either regular analog FXO/FXS telephone lines
and/or T-1 spans. Depending upon the number of
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simultaneous connections expected, the Tempest
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can be connected to an IP network (intranet, frame
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relay, Internet, etc.)
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with an access line as small as 8kbps or as large as a
1.5mbps T-1. The Tempest can be dialed into from
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the Public Switched Network (PSTN) or from an
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office PBX extension. The Tempest then
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compresses (8:1) and converts the compressed
voice packets to IP packets and sends the packets
out to the assigned destination, which is another
Tempest at the other end of the IP network. The
receiving Tempest routes the call through an
internal PBX key system or dials the local PSTN
telephone. The telephone rings at the destination
premises or off site destination and the whole process only takes a few moments to complete.
Bear in mind that FTEL can also place FXO's FXS's in the DVG. For
those who are unaware of what FXO and FXS means.
FXO: Foreign Exchange Office: In telephony, the end of a circuit that is looking for dial-tone. In analog channel banks, FXO ports are used
when one PBX is tying itself to another PBX and the PBX is providing
dial-tone to the channel bank. FXO ports do not provide dial-tone.
FXS: Foreign Exchange Station: In telephony, the end of a circuit that
connects to a telephone device. FXS provides dial-tone. In an analog
channel bank, a FXS port interfaces with the telephone switch and offers the switch dial-tone as if the switch is directly connected with a CO line. When installing a FXS port on a channel bank, it is important to set the start type correctly. That is, it must either be ground start or loop start. This is determined by what the telephone equipment wants to "see" on the dial tone.
Below is the source for the above information on the tempest.
ftel.com
ftel.com
ftel.com
ftel.com
Sorry this proved so long but it is imperative that when comparisions are made thay are made accurately especially when comparing basic hardware and software capabilities.
Martin Smith |
