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Desktop RS232 |
Desktop USB |
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List Price |
$299 |
$349 |
$249 |
$399 |
$499 - $699 |
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Number of Lines |
1 |
1 |
1 |
1 |
4 |
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AC Adapter Required |
yes |
optional |
no |
optional |
optional |
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PC Connectivity |
RS232 |
USB 1.1 |
USB 2.0 |
USB 2.0 |
USB 2.0 |
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Integrated SLIC (Subscriber Line Interface Circuit) |
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- |
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Ring Local Telephone |
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- |
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Generate Caller ID to Local Telephone |
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- |
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Generate Visual Message Waiting to Local Telephone |
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- |
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Number of Headset Ports |
1 |
2 |
1 |
2 |
2 |
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Professional 4P4C modular headset connector port |
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- |
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3.5mm PC Headset Port |
- |
- |
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- |
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2.5mm Parallel Headset Port |
- |
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- |
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- |
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Analog Headset volume |
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- |
- |
- |
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Digital Headset Volume |
- |
- |
- |
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Enhanced audio quality |
- |
- |
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Direct Sound support |
- |
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Echo |
Suppression |
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- |
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Cancellation |
- |
- |
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Separate volume control for Line/Phone/Headset |
- |
- |
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Dedicated wave out for Music on hold |
- |
- |
- |
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Parallel Phone/Headset operation |
- |
- |
- |
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Distinctive DTMF Source (Line/Phone) |
- |
- |
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Parallel Phone Off/On Hook Detection (Other Phone on same line) |
- |
- |
- |
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Parallel Phone DTMF Detection (Other Phone on same line) |
- |
- |
- |
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On-Hook Line Audio Recording (Line-tap) |
- |
- |
- |
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Custom stand alone operation (AC Adaptor required) |
- |
- |
- |
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Wake up Host PC |
- |
- |
- |
- |
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LED indicators |
6 |
6 |
3 |
6 |
8 |
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Dimensions |
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L 4.4” |
L 4.3” |
L 4.4” |
L 7.8” (198mm) |
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Weight |
6.7 oz (190 grams) |
6.7 oz (190 grams) |
4.6 oz (130 grams) |
6.7 oz (190 grams) |
11.3 oz (320 grams) |
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