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E1/T1 Trunking Board (SHD)

E1/T1 Trunking Board (SHD)

Processing and Transfer RTP in E1/T1 PSTN Network and DSP-Empowered for Media Processing

  • CPU Processing
  • Pure SDK Install
  • VoIP Trunking App
  • 2,000Chs Per System
A Wide Range of Voice-Based Solutions

Synway’s IP & TDM Products consist of multiple product lines: SHN series for IP network, SHD series for E1/T1/J1 digital network, and SHT series with analog interface, Host Media Processing platform. Besides a complete range of media resources, such as fax, conferencing, compression, echo cancellation for voice enhancement, they also combine various built-in signaling protocol software packets, which include SIP, H.323, SS7 (ISUP/TCAP/TUP/MTP), ISDN variants, CAS and more.

Powerful media processing and signaling capability

HMP & DSP-Based Telephony Boards have a whole family product like for Analog, Digital, Trunking, SIP interfaces and more; These products feature powerful Signaling(SIP/SS7/ISDN) and Media Processing(Audio, Faxing, Conferencing), and Widely Used in Contact Center, IVR, OBD/IBD, Call Accounting, UC and More.

Powerful media processing and signaling capability

HMP & DSP-Based Telephony Boards have a whole family product like for Analog, Digital, Trunking, SIP interfaces and more; These products feature powerful Signaling(SIP/SS7/ISDN) and Media Processing(Audio, Faxing, Conferencing), and Widely Used in Contact Center, IVR, OBD/IBD, Call Accounting, UC and More.

Contact Synway for This Product
  • 1~16E1/T1 Digital Trunking
1, 2, 4, 8,16E1/T1 digital interfaces in a single slot for connection to PSTN, voice processing, conferencing, FSK communications (1200 bits/s and 2400 bits/s), HDLC communication capabilities, as well as 1~16 SS7 signaling links on a single board.

  • PCI/cPCI Interface
Boards with cPCI interface supports high-availability for maintenance and replacement during system run time, with over 99.99% availability in high capacity.

  • Built-in Voice Processing Resource
Support: A-law, u-law and IMA ADPCM format, record/playback of Windows WAV file, tone generation/reception/detection for signals, FSK receiver/transmitter, HLDC processing, adaptive echo cancellation, barge-in functionality.

  • Distributed Teleconferencing
Built-in conference resource in each port, support conference recording and monitoring; DTMF filtering to eliminate DTMF signal in conference, and can be configured as interactive teleconferencing without limit on the number of conferees and conferences in multiparties.

  • Rich DSP Resources
Efficient management of DSP resources minimizes host overhead and maximizes host processing time for applications; DSP-based voice, DTMF/MF and call process analysis ensure application reliability.

  • Multiple Signaling Capabilities in Single Board
International CAS, ISDN and SS7 supported: SHD supports ISDN PRI, CAS, QSIG, CORNET, MTP, TUP, ISUP, SCCP, TCAP, and include functions such as multi-DPC application, multi-link group and hot backup, changeback and changeover.

  • All-in-One Architecture
Universal port capability supports conference, fax, voice and signaling processing and built-in SHD Series functions to ensure scalability, compatibility, and high performance to leverage developer time and application investment.

  • FAX Resource
16~80 channels of DSP based Group 3 FAX resources available, transmission speed up to 14400bps; support .TIF file; Fax transmission of all kinds of printable files, easily viewed and printable; Fax capability is software configurable.
Core Specifications

Switching Bus

Full-speed H.100/H.110 bus with 4,096 timeslots supports interoperability with other H.100/H.110 boards in open-architecture, high-capacity systems, and hierarchical switching model improves system and application scalability.

Max. System
Up to 8 boards per system (PCI boards with upto 80E1 and cPCI with up to 128E1).

In-House Unified API
Simplify system development and deployment efforts; protocol-independent open access interface for CAS, ISDN and SS7; support polling and event-driven modes, and feature-rich software development kits support Windows and Linux

Functions List
  • Supports super voice alteration: as many as 150 voice alteration effects available for your choice
  • All voice-alteration channels are independent to one another: each can be set separately with voice-alteration effects
  • A single board accommodates 8 E1/T1/J1 trunks
  • Supports China SS1, SS7 and ISDN connections in E1/T1 mode   
  • Supports phone calling and voice processing
  • Activity/silence detection
  • Automatic Gain Control (AGC) support in recording operation
  • Allows DTMF transmission and detection during voice recording or playback
  • Includes H.100 bus, compatible with MVIP, SC and ST buses, facilitating smooth connectivity to third-party boards with H.100 bus for the transfer of acquired voice signals to other devices
  • The flexible distributed conferencing system sets no limit on the number of simultaneous conferences and participants in each conference, allows monitoring and recording of the whole conference and each individual speaker
  • The on-board lightning-proof circuit reaches the telecom standard and surely eliminates the damage caused by lightning
  • Equipped with the EMI circuit, effectively preventing the electromagnetic interference
  • Each board has a unique hardware serial number written in the firmware to distinguish itself from other boards and prevent piracy.
  • The number is available via an easy function call with applications
  • The on-board authorization code identification circuit is designed for software safety. Users can apply to our company for the authorization code

310×115mm2 (excluding L-bracket)
Environment Operating temperature: 0℃—55℃
Storage temperature: -20℃—85℃
Humidity: 8%— 90% non-condensing
Storage temperature: 8%— 90% non-condensing
Input/output Interface E1 physical ports: Compliant with G.703, including 75Ω unbalanced interface and 120Ω balanced interface
T1 /J1 physical ports:DSX-1 and CSU line build-outs available for different extents of signal losses, including 100Ω and 110Ω balanced interfaces
Audio Specifications
CODEC: CCITT A/µ-Law 64kbps,
Distortion: ≤3%
Frequency response: 300-3400Hz (±3dB)
Signal-to-noise ratio: ≥38dB
Echo suppression: ≥40dB
Maximum System Capacity

Up to 8 digital trunk boards concurrently per system; up to 240 channels per board
Echo Cancellation
SHD-30E/60E-CT/PCIe/EC: 64ms
SHD-30E/60E-CT/PCIe/FAX: 64ms
SHD-120E/240E-CT/PCIe/EC: 64ms
SHD-120E-CT/PCIe/FAX: 64ms

Power Requirements
Maximum power consumption: ≤10W
Signaling SS1: Compliant with DL and MFC standards stipulated in GF002-9002; supports D4 and ESF framing; SS7: compliant with Q771-Q795; DSS1: compliant with Q.933
Audio Encoding & Decoding
16Bit PCM      128kbps; 8Bit PCM       64kbps; A-Law          64kbps; µ-Law          64kbps
IMA ADPCM     32kbps; GSM           13.6kbps; MP3            8kbps
Lightning Resistance: Level 4
Related Products
Fax Processing Board(FAX)
VoIP Trunking Board (SHN)
Analog Trunking Board (SHT)
Success Stories & Applications
Synway VoIP Gateways Enable Smooth Integration between Legacy TDM and IP Contact Center Platforms
ChinaUnionPay selected Synway' SMG series VoIP Gateway to connect its TDM and IP-based contact center operations to the PSTN.
Global BPO Provider Huayun Data Chose Synway SMG Gateway for Multiple Offshore Service Center
Founded in 1998 and headquartered in USA, Huayun Data, a leading provider of global Business Process Outsourcing (BPO) services, deployed Synway SMG2000 media gateways at its locations in the US to enable a one-stop, cost-effective and reliable VoIP connections between its affiliated agencies.......
BSNL India Helps SMB Enterprises Migrate Legacy TDM Switcher to VoIP Services by VoIP Media Gateway
Through years of experience, Synway's engineers specially designed a cost-effective VOIP gateway products for operators including Airtel and BSNL in India and Middle East regions and other developing countries, including SMG3000-B1L and SMG3000-B2L
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