Packet Voice Processor™
Packet Voice Processor™
Product Features | Overview | Technical Specifications
Media Processor for VoIP Networks Voice over IP (VoIP) is transforming the world of telecommunications. As service providers transition from traditional circuit-switched network infrastructure to VoIP, they must address the challenges of providing high quality voice and service flexibility, while continuing to meet high customer expectations. The migration to VoIP presents a fundamental change in how voice networks are built, operated, and maintained. With a variety of consumers and enterprises accessing the network across a number of different network types (Cable, DSL, T1/E1, etc.), providers must solve the many voice and service quality problems of the new VoIP network. The new VoIP devices, network types, and interconnectivity lead to problems such as differing codec formats, packet impairments (packet loss, delay, and jitter), and voice impairments (echo, level mismatch, and noise) that lower the quality of VoIP calls. |
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| Product Features |
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| Network Solutions |
Ditech Networks’ Packet Voice Processor is a voice processing platform that enables carriers to deploy scalable, carrier-grade VoIP services. Designed to address the voice quality and interoperability problems of the VoIP network, Ditech’s Packet Voice Processor is integrated with a comprehensive set of voice processing features that ensure consistently good voice quality while maximizing carrier service offerings.
Codec Transcoding
Ditech’s codec transcoding feature provides flexible
voice codec transcoding with best-in-class scalability and density. With a
universal media transcoding framework and an industry-leading array of wireline
and wireless codec formats, the Packet Voice Processor enables carriers to
optimize bandwidth and serve the largest set of customers worldwide. The advanced
voice processing architecture of the Packet Voice Processor supports over 40,000
transcoding sessions per rack with very low transcoding delay.
Voice Quality Assurance (VQA™)
Ditech’s VQA software suite provides a collection of advanced voice
processing features to process and improve voice quality with VoIP. Utilizing
state-of-the-art algorithms to remove voice quality impairments such as echo
and noise in addition to adjusting level and enhancing intelligibility, VQA
delivers higher quality voice calls to customers using VoIP networks.
Packet Quality Assurance™ (PQA™)
Ditech’s PQA software suite addresses the issues of packet loss and
jitter that are prevalent in the IP network. Network congestion in large IP
networks becomes increasingly problematic for the delivery of real-time voice
services. Ditech’s PQA algorithms enable providers to repair and reconstruct
missing packets from a voice call, improving the perceivable end-to-end quality
of VoIP calls.
Experience Intelligence™ (EXi)
Ditech’s EXi solution offers carriers robust continuous monitoring and
measurement capabilities for all voice channels on a network. The EXi
solution consists of an EXi-Agent on the Packet Voice Processor, an
EXi-Collector to gather information from multiple systems, and an
EXi-Reporter to display networkwide data. With this new capability,
carriers can ensure total voice quality, recognize and identify network
trouble points, receive automatic alerts when a problem arises, and
provide advanced reporting for network planning and customer SLAs.
Technical Specifications
Highlighted Features
| Vocoders & Media Processing
| Voice & Packet Quality Assurance (VQA/PQA)
| EXi-Agent
| Call Control & Signaling
| Protocols
| Clocking & Synchronization
| Network Management
| Switching
| Interface Processing Card Options
| Redundancy & Reliability
| Capacity
| Dimensions & Weight
| Power & Cooling
| Environmental
| Regulatory Information
| HIGHLIGHTED FEATURES |
| Full VoIP
media transcoding framework Complete VoIP voice quality feature set Advanced VoIP monitoring and measurement High performance voice processing Carrier-grade 99.999% reliability Pooled DSPs with redundancy High density and scalability |
| VOCODERS & MEDIA PROCESSING |
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G.711 µ-law G.711 A-law G.723.1 G.726 G.729 G.729a G.729b G.729ab G.729e G.729g iLBC G.722* G.722.1* G.727* G.728* GSM-HR, GSM-FR, GSM-EFR* GSM-AMR (AMR-NB)* G.722.2 (AMR-WB)* VMR-WB* EVRC, EVRC-B, EVRC-WB (4GV)* Speex* BroadVoice® 16/32* iSAC* iPCM-wb* Voice Activity Detection (VAD) T.38 Fax Relay DTMF Relay Modem Detection and Fallback |
| VOICE & PACKET QUALITY ASSURANCE (VQA/PQA) |
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Adaptive Noise Cancellation (ANC) Acoustic Echo Control (AEC) Enhanced Voice Intelligibility (EVI) Automatic Level Control (ALC) Intelligent Packet Restoration (IPR) Hybrid Echo Cancellation (HEC) |
| EXi-AGENT |
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Noise and speech levels Echo and delay Transmission Rating (R) Factors Mean Opinion Scores (MOS) Packet network statistics Packet count |
| CALL CONTROL & SIGNALING |
| SIP
(RFC 3261) H.248* |
| PROTOCOLS |
| IP, UDP/TCP, RTP |
| CLOCKING & SYNCHRONIZATION |
| Internal oscillator
(Stratum 3 clock) Dual BITS clock inputs Network Time Protocol (NTP)* |
| NETWORK MANAGEMENT |
Ditech NetConsul™
EMS with web interface |
| SWITCHING |
| Dual 40 Gbps protocol-independent fabric |
| INTERFACE PROCESSING CARD OPTIONS |
| 4-port
1000Base-T copper 4-port 1000Base-LX optical 4-port 1000Base-SX optical |
| REDUNDANCY & RELIABILITY |
| Network
interfaces: 1:1 or 1:N Media processing resources: 1:N (pooled) Shelf control card with fabric: 1:1 Application processor card: 1:1 Automatic card protection switching Hot-swappable boards, power supplies, fans LACP protocol, VRRP support Integrated and dedicated signaling ports |
| CAPACITY |
| Up to 13,440
VoIP sessions per chassis Up to 3 chassis per 7-foot rack |
| DIMENSIONS & WEIGHT |
| Enclosure:
13 RU, 14 slot Dimensions (H x W x D): 22.75 x 18.9 x 18 in (578 x 480 x 458 mm) Mounts for 19″ ANSI/EIA racks Weight, empty: ∼80 lbs (36 kg) Weight, fully loaded: ∼190 lbs (86 kg) |
| POWER & COOLING |
| Input voltage:
A&B –48 VDC (–39 to –60 VDC) Power: 80A (@ –39V) max. per chassis Cooling: filtered, vertical forced air Blowers: 4 fan modules |
| ENVIRONMENTAL |
| Operating
temperature: 0° to 50°C Operating humidity: 0 to 95%, non-condensing Heat output: 10,600 BTU/hour max. per chassis |
| REGULATORY INFORMATION |
| UL 60950
/ EN 60950 CAN/CSA-C22.2 FCC part 15 Class A EN 300 386-1 and -2 EN 55022 (CISPR 22) Class B EN 55024 Telcordia GR-1089-CORE NEBS Level 3 per Telcordia SR-3580 CE Mark |
*Future capability