Maintenance Notification (29 August 2014)
The Dialogic website is currently performing scheduled maintenance. Not all site functionality will be available from 16:30 EST until the end of the day. We apologise for any inconvenience.

Dialogic® SPCI2S and SPCI4 SS7 Boards

DSI SPC Signalling Boards

Low Density Signaling for Effective Value-Added Services

The Dialogic® SPCI2S and SPCI4 SS7 boards are entry-level products offering support for up to 4 SS7 links and 4096 ISUP circuits.  The SPCI2S and SPCI4 combine SS7 protocol support with up to four digital line interfaces (T1/E1/J1) and an H.100 PCM highway.

The SPCI2S and SPCI4 are part of the Dialogic® Distributed Signaling Interface (DSI), which enables affordable, high-performance, distributed, cross-platform, cross-operating-system signaling applications.

Features and Benefits
Conforms with DSI, enabling MTP and ISUP protocols to be supported onboard or used with DSI SS7 host protocol layers (MTP3, ISUP, TUP, SCCP, TCAP, MAP, IS41, INAP)

Ensures reliable global deployment using protocols that are currently deployed in many networks worldwide
Ensures easy integration into third-party applications or protocol stacks at any level above MTP2

Entry-level product offering with support for up to 4 SS7 links and 4096 ISUP circuits  

SPCI "low density SS7 bundles" include SS7 board and MTP and ISUP software for most circuit-based, low-density market segments

H.100 CT Bus compliant interface

Allows easy integration with other technologies, as well as the ability to transport signaling to other boards in a system or to external hosts

Product Highlights
System size Small-to-Medium Enterprise
Form factor PCI
Resource bus H.100 SCbus with PEB connectors
Ports Software-selectable T1/E1/J1 digital network interfaces, up to 4 SS7 links
Operating systems


Network interface

SPCI4 - 4 T-1/E-1 network interfaces
SPCI2S - 2 T-1/E-1 with serial network interfaces

Onboard signaling support

Call control/call routing (i.e., migration of ISDN-based networks to SS7 networks)
Wireless messaging (i.e., short message service [SMS], televoting, short message service centers [SMSC], location-based services)
Advanced intelligent networking/Intelligent networking (i.e., Service Control Points, local number portability, network access, 800/free-phone services, premium rate numbers, virtual call centers, pre-paid calling, virtual private network [VPN], mobile office, unified messaging)

Application Notes

  • This application note provides information about developing a call monitoring application using the Dialogic® SS7 signaling and media products. Dialogic developed a sample application that provides both a starting point and a reference for those who choose to develop an SS7-based application that monitors SS7 links and records calls on the links. Call recording can be triggered based on information related to the call. Calls may be recorded to multiple files or streamed through the data network for real-time monitoring.
  • The application note describes the implementation of an interactive Unstructured Supplementary Service Data (USSD) service for GSM mobile users.  Sample code is included within the document.
  • This application note presents an SS7 demo system using Dialogic® DSI Components (SS7) with Dialogic® HMP Software Release 3.1LIN to demonstrate to users familiar with SS7 concepts that the SS7 configuration process can occur very quickly.

  • This application note provides a demonstration and information about developing an IS-41 SMSC application that combines the functions of SMSC and SME using Dialogic® DSI Components.
  • In order to achieve “five nines” availability and a high degree of fault tolerance in an SS7 signaling environment, an SS7 end point can be spread over two chassis using Dialogic® Signaling Distributed Architecture (SigDiA) enabled components. Dialogic® SS7 components are designed for this dual chassis approach and provide the architecture for splitting a point code over two active SS7 protocol engines. This application note discusses the design and implementation of such a dual chassis method for achieving high availability and fault tolerance using Dialogic® SS7 signaling boards.
  • This application note describes the implementation of a Color Ring Back Tone (CRBT) wireless service. Focusing on the technologies and signaling involved, this document demonstrates how service providers can integrate CRBT into an existing Signaling System 7 (SS7) wireless application using Dialogic® Signaling Distributed Architecture (SigDiA) enabled building blocks.
  • This application note describes the installation and configuration of circuit-switched telephony systems that combine Dialogic® Signaling Boards and Dialogic® DM3 Media Boards on platforms based on Linux and Windows® operating systems.
  • This application note provides an overall view of Location-Based Services (LBS), describes the signaling and technology involved, and discusses how Dialogic® signaling components can be used in implementing such services.

Case Study

  • With its CAMEL IWF (InterWorking Function) Gateway, JSC Ingenium is allowing CELL C, the third largest mobile operator in South Africa, to integrate exciting next-generation SIP-based value-added mobile services into its conventional SS7 network. JSC Ingenium uses Dialogic® Distributed Signaling Interface (DSI) Components for signaling, switching, and transcoding in its CAMEL IWF Gateway and other solutions because DSI Components help to make these solutions easy to deploy, interoperable with TDM or IP, and very scalable.
  • Etisalat Sri Lanka understands both the challenges and the importance of providing unique and sustainable roaming services to attract customers, whether inbound or outbound. Because quality and user satisfaction are top criteria, Etisalat Sri Lanka chose three of Globitel's Roaming Solutions (Feel@Home, RoamSalute, and Intelligent Traffic Steering) because they aim to provide high levels of reliability and interactivity. These services also encourage roamer loyalty with superior quality and a user-specific interface that easily promotes SMS and data usage while allowing insight into roamer behaviors and service usability tracking.

  • Forte-IT's IVR IntelleScript PRO (built on Dialogic® media and signaling products) handles services in over two million calls per day for VimpelCom, a major Russian mobile operator, which supplies services under its Beeline brand.
  • CCMENA designed an integrated IVR, CRM, and contact center solution that would allow the international mobile satellite service provider Thuraya to manage its customer care operations more efficiently.
  • Color Ring Back Tone (CRBT) has replaced the monotonous ring tones of the past with pleasing music, warm greetings, and interesting advertising. CRBT can not only reflect the unique personality of the caller but also provide a pleasurable experience for the person called, adding variety and enjoyment to a simple communications process. 
  • GloBul, the second-largest wireless operator in Bulgaria, has added a new service to help its customers handle missed calls. The new service, known as Call Notify, was built on the JN Missed Call Notification (MCN) system from Bulgarian telecom solution supplier Applicata, and was based on a fully redundant SS7 configuration from Dialogic.
  • Telecom equipment manufacturers (TEMs) and service providers are searching for ways to generate revenue from new services. Applications utilizing enabling short message service (SMS) can be an ideal way for these businesses to increase income without making a major infrastructure investment.

White Paper

Use the Purchase page linked below to find partners to purchase Dialogic products. The order codes below are for your reference when making a purchase.

Where to Buy

ProductOrder CodeDescription
SS7SPCI2SQ 881-589 2 T1/E1, 4 LSL, 2 V.11
SS7SPCI4Q 881-590 4 T1/E1, 4 LSL
SS7SBPCIMTP2Q 883-136 MTP2, 4 LSL license
SS7SBPCIMTPQ 883-135 MTP2 & MTP3, 4 LSL license
SS7SBPCIISTUPSQ 883-171 ISUP, TUP, 1K circuits license
SS7SBPCIISTUPQ 883-817 ISUP, TUP, 2K circuits license
SS7SBPCIISTUPLQ 883-816 ISUP, TUP, 4K circuits license
SS7SBPCIMONQ 883-133 Monitoring license
SS7SPCI2SL2C1KQ 884-715 Kit: 2 LSL, 1K circuits, MTP2, MTP3, ISUP, TUP
SS7SPCI2SL4C2KQ 884-714 Kit: 4 LSL, 2K circuits, MTP2, MTP3, ISUP, TUP
SS7SPCI2SL4C4KQ 884-713 Kit: 4 LSL, 4K circuits, MTP2, MTP3, ISUP, TUP
SS7SPCI4L2C1KQ 884-717 Kit: 2 LSL, 1K circuits, MTP2, MTP3, ISUP, TUP
SS7SPCI4L4C2KQ 884-716 Kit: 4 LSL, 2K circuits, MTP2, MTP3, ISUP, TUP
SS7SPCI4L4C4KQ 884-711 Kit: 4 LSL, 4K circuits, MTP2, MTP3, ISUP, TUP