Amanda Company Vdex-40 Embedded Asterisk* IP-PBX (Discontinued)
(Model # VDEX-40)
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Vdex 40 VoIP System Features:
- Separate Voice and Data Processors - Vdex incorporates multiple processors separating much of the voice and data traffic which maximizes voice quality even when there is heavy data traffic
- Hardware Voice Compression and Echo Cancellation - Vdex also includes one or more Digital Signal Processors (additional to the above) dedicated to compressing voice (so voice uses less valuable Internet bandwidth). The DSPs also remove any echo that sometimes can be heard when VoIP systems connect to the telecom line
- Automated Call Attendant - Each call is automatically answered using a greeting or spoken directory you define and record
- Answer Each Incoming Line Differently - You may configure each incoming phone line to be answered differently. (May require installer configuration)
- Conferences - Vdex supports conferencing for up to 8 participants
- Voice Mail - Callers may leave a voice message when extensions are not answered. A unique voice-mail greeting may be recorded for each extension. Vdex can even email you the recorded message
- Interactive Voice Response (IVR) - Create your own interactive voice response and sophisticated message system. Purchase an option to conduct voice surveys of your callers
- Asterisk 4PBX Application - Vdex uses a subset of the well-known and established Asterisk PBX program which has been modified, enhanced and hardened by Team TechnoCo
- Forward Calls When Busy or Away - Vdex can automatically forward calls to your extension to your mobile, other extensions or your personalized voice mailbox when you are away or not available
- Least Cost Routing of Your Phone Calls - Vdex can be programmed to automatically route calls so as to reduce your call costs
- Calls With Other SIP VoIP Users Can be Free of Telco Phone Call Costs - Calls to your other offices, staff, other Vdex users and virtually any SIP Compliant Phone or PBX connected to the Internet may be routed over the Internet and be free of traditional telephone call costs
- Use Your Office Phone Line From Home, or Virtually Anywhere - Make telephone calls using your office telephone line by using a SIP-based telephone which may be located virtually anywhere Internet connection is available – great for allocating work calls made at home to the work phone bill, or taking work calls while at home. Alternatively, use your mobile or a standard phone to call into your office whereby Vdex can redirect your call out through a second telephone line or out over the Internet
- Configure and manage via Druid browser interface - Configure and manage Vdex via a special Vdex version of the respected Druid graphical user interface by Voiceroute. This version has been optimized by Voiceroute for peak performance as an embedded application running inside Vdex. Druid has also been hardened over a period of 18 months by Team TechnoCo. Vdex can be configured locally over the LAN and remotely over the Internet
A truly affordable IP-PBX for the SOHO (Small Office Home Office) market, the Vdex-40 is an Asterisk-based IP-PBX appliance that will support up to 35 telephones. Vdex is a hybrid PBX phone system interoperating with the telephone and Internet networks to offer the best of both. Operating a modified version of popular Asterisk4 software, Vdex provides both PBX and advanced voice over Internet (VoIP) functionality.
For highest reliability, Vdex-40 is a fully embedded system using flash memory, with no spinning hard disk drives or noisy fans which are prone to mechanical failure. The Vdex-40 is the first ever asterisk appliance to feature dual cpu's - one for back end processes and one exclusively for voice quality and codec processing.
It features four built-in FXO ports for direct connection to POTS/PSTN lines (regular phone lines) and can support additional lines using SIP trunking. Vdex does not require Internet connection. If the Internet “goes down” Vdex still performs as a PBX and messaging system, placing and receiving calls to and from the telephone network. When connected to the Internet, Vdex is additionally a VoIP gateway providing access to lower-cost and free calls, call routing over the Internet to remote phones, offices and others connected to the Internet anywhere in the world.
Highlights
- Embedded appliance using flash memory
- Browser / Web based administration
- 4 FXO (telephone) lines built-in
- SIP Voip trunking support (6 provider accounts)
- 35 SIP telephone extensions (same codec)
- Hardware based voice codecs
- Hardware based echo cancellation
- Automated Attendant(s)
- Voicemail (18 hours)
- Voicemail to E-mail forwarding
- Remote Voip extensions ( eg. answer calls from home or laptop)
- Forward calls to mobile when away from desk
- Conferencing (8 participants)
- Time-based call routing
- Call statistics
- Asterisk-based flexibility
Compared to traditional phone systems, Vdex-40 can do so much more than simply receive calls, put callers on hold and transfer. Standard features include: multiple automated attendants, conference bridges, remote extensions, multi-location bridging, mobile extensions with laptop soft phones and voice mail forwarding to e-mail. Try asking any non-Asterisk based system to do the same, especially at a small office price!
While the Vdex-40 was designed for the SOHO market, it still maintains the same flexibility and extensibility as other Asterisk based systems, but it offers much more at a much better price: four built-in FXO ports for phone lines, hardware based codecs with G.711, G.723.1, G.726 and G.729a/b, hardware based G.168 echo cancellation and most importantly two different processors for separate handling of call processing from voice processing.
Vdex-40 Load Factors , System Capacity & Architecture
Call capacity of an embedded Asterisk-based telephone system is highly dependent upon not only hardware architecture but also configuration and concurrent resource activity. For example, performance under load will vary dependent upon such factors as (but not limited to):
- if the RTP payload (audio) is routed through the PBX or routed directly between the SIP endpoints in a call;
- if the test is exercising concurrent or accumulative call set-up;
- if other services are such as IVR and voicemail and concurrently in use;
- if the PBX is performing transcoding services
Vdex model 40 is engineered to support offices with approximately up to 36 + users. We say "+" as Vdex-40 can service more extensions but like any PBX the key factor is how many extensions are concurrently expected to be in use. For example, in a call center one may expect most extensions to be in concurrent use. In an office one may expect perhaps 30% of extensions to be used concurrently.
Vdex-40 has been tested to support approximately twice (70) the number of users/extensions specified above (36) making simultaneous SIP calls to another like number (70) of SIP extensions. This is irrespective of whether RTP payload is either routed through the PBX or routed directly between SIP end points. Further tests with a variety of other load factors operating concurrently, such as (but not limited to) IVR activity, shows Vdex supporting the stated capacity of 36 while also supporting other resources such as IVRs sufficient to support inbuilt FXO ports.
Vdex-40 is the first Asterisk-based Appliance in the world to maximize voice quality by implementing multiple ARM processors dedicated to the separate processing of voice and data, Vdex’s architecture also includes as standard, additional digital signal processor(s) for the compression of voice and cancellation of line echo on the FXO ports. Vdex is a fully embedded platform using flash memory to replace spinning hard disk drives, and with no fan requirement the potential for mechanical failure is further minimized.
Notes:
- Echo cancellation for inbuilt FXO ports is provided in DSP hardware and does not effect above performance figures.
- Voice codec operation is performed in DSP hardware and does not effect performance figures.
- Transcoding between (different) inbuilt hardware-based voice codecs will effect performance but not diminish from the above stated operation.
- A total of 16 hardware-based complex voice codecs (refer to codec specification in data sheet for product model) may be simultaneously in operation within Vdex-40. This factor should not be confused with those codecs which run outside Vdex. For example, those within handsets, gateways and other SIP endpoints and which are not to be included in (but are additional to) the stated Vdex-40 total of 16.
- Vdex architecture implements dual ARM processors and a Mindspeed DSP.
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