Call Recording

In Gig Data era, Synway’s call recording products provide business operators with decision-making and support data tools, to improve operational efficiency and effectiveness in diverse application landscapes, including banking, public security, call center, Airport and so on. Today, Synway’s products help at least 2 millions of telephony users to monitor and analyze their everyday operation. Globally, specially China, US, India, and European Countries, Synway possesses unparalleled recognition for following values:


● Complete product range, excellent voice optimization technologies, and fit to all networks worldwide

● Robust and versatile hardware architecture, compliant with diverse networks and match all niche needs worldwide

● Customizable and highly standardized, fit to any unique or special applications demands


Synway offers the broadest range of call recording hardware platforms. For two decades Synway has consolidated its position as a leading international call recording hardware solution vendor. Having worked with our products over time, our clients have helped Synway achieve: the most diverse product ranges, greatest scalability, greatest compliance with multi-protocols and multi-networks, and the most installations in Asia and Europe.


As a proud milestone in call recording hardware design, the DTP series is E1/T1/J1 interface software configurable, supports 4, 2 or 1 dual span taps per slot, and can flexibly fulfil various requirements. Specifically, by providing on-board advanced DSP algorithm and DMA processing capability, the DTP series helps minimize host CPU resources and outperforms all competitor products in the toughest application scenarios. This includes better performance and higher scalability up to 960(32E1)-channels simultaneous call logging. For these reasons many leading developers worldwide depend on the DTP series to create robust high capacity systems in complex central office as well as high-demand Telco environments.


With multiple signalling capabilities and high compatibility with international standards, the DTP series has been widely used as a reliable and cost effective tool by call recording application developers to passively tap E1/T1/J1 networks in a variety of complex telephony environments. Used by the leading call recording solution providers since the 1990s, the DTP series has been optimized to fit the toughest demands and most competitive environments because of its unrivalled cost advantages and world class robustness.


The DTP series also leverages dedicated DSP chipsets to process a range of high-ratio compressions, such as license-free G.729 and GSM. This robust architecture further releases host processor resource from overloading and assures efficient data storage and high robustness for data transmission in the most difficult situations. The DTP series provides call logging application developers with a complete range of options, portfolios containing half/full length, E1/T1/J1 configurable, CAS/ISDN/SS7 protocols and more versatility. Conveniently DTP series can be installed into most server categories and computer types. All of its new-generation portfolios are PCI-express form factor, half-length card.


Key Features & Benefits

Single and Dual Hi-Impedance E1/T1/J1 Digital Tap

Tap digital lines with no additional hardware for passive logging applications.


Multiple Call State Monitoring (CAS/ISDN/SS7)

Support the ISDN, MTP3,TUP, ISUP, CAS signaling protocols and report the call states and calls parameters via comprehensible API events.


True Dual Span Capabilities

Customizable RJ-45/BNC/RJ-11 interfaces can record inbound/outbound sides of a conversation, and support inbound and outbound call recording.


Support Direct Windows WAV Format

Data is stored in WINDOWS WAV format directly, and can be played out by sound card with no format conversion.


High Density Passive Tap Capabilities

Operating between a central office and PBXs, the DTP's high impedance receivers record both sides of a call without interrupting service. Each board can process up to 120 ports, with a maximum of 960 ports per host.


Voice-Processing Capability

A large selection of voice CODECs for developers, including G729, GSM, G711 A-law, μ-law, Linear PCM, IMA-ADPCM, MP3, and support VOX format .


Tap Environment

With single or dual E1/T1/J1 trunk boards, DTP adapts to high density applications. The Synway's in-house unified API supports a total of 960 ports per system. In any digital environment, DTP can work well as tapping point between office and PBX, office and phones, PBX and phones and any other digital audio signals.


Worldwide Interface Digital Support

DTP