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T1 DCME -Voice Compression
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Description Valiant's VCL-LD™ T1 DCME Voice
Compression equipment provides 24, toll-quality, very clear and sharp, voice channels
using an 6:1 compression ratio. Also available with fax and data modem support @ 33.6Kbps
data rates. This is accomplished using an advanced, DSP based Viterbi decoder with
automatic Voice / Silence detection (VAD) and adaptive comfort noise (CNG) generation.
The VCL-LD, T1 DCME has an in-built T1 Echo
Canceller (128ms. echo cancellation card).
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Applications diagrams
The interface to the
local PSTN Network is ITU-T, G.703, G.704 compliant T1 with Signaling support for PRI ISDN
Signaling, C7 and SS7 Signaling.
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Voice Quality statement for the
VCL-LD™ Equipment using 6:1 compression technology, for providing better voice
quality than G.729, G.726 and GSM technology. VCL-LD,
T1 DCME is a natural choice for Long Distance Telephony Service
Providers (including Pre-Paid Calling Card Operators), Cellular
Operators, Corporate Customers, Call-Center Operators wanting to
optimize on expensive bandwidth usage and offer a competitively
priced, toll-quality service to their customers. |
Features
- Support for Multiple Signaling Platforms including PRI ISDN,
C7 and SS7 Signaling.
- T1, 24 voice channels in 256Kbps bandwidth (4, DS-0's for
voice only applications).
- T1, 24 voice channels in 384Kbps bandwidth (6, DS-0's for
voice, fax and data modem support applications.
- Ideal choice for Long-Distance Telephony (including Pre-Paid
Calling Card Operators), Cellular Operators, Corporate Customers, National and
International Call-Center Applications, and ISPs provide long distance telephony.
Highlights
- T1, 24 Toll-Quality voice channels
- In-built Echo Cancellation (128ms.) card.
- Supports fax and data modems @ up to 33.6Kbps data rates.
- Advanced FEC (Forward Error Correction) for IP links
- DSP based Vertibi Decoder for superior voice quality.
- 6:1 compression ratio.
- 3U high, compact construction.
- Synchronization user selectable clock sources (Priority
Selection of Clock Sources).
- Modular Architecture - reduces downtime.
Mechanical
Specifications & Weight
| Rack Mounting |
Standard 19 inch DIN rack |
| Height |
3U (133.22 mm) |
| Depth |
260 mm |
| Width |
477 mm |
| Weight |
8.00 Kgs. |
Related Links
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