The Pulse Softswitch Solution allows service providers, carriers and organizations to provide class 4 or/and 5 telephone services over IP backbones including the Internet. The Pulse Softswitch is based on the award winning Verso Clarent Distributed Softswitch. This system places functional elements on separate servers - harnessing processing power efficiently for a singular function or set of related functions. You can now scale each element based on your specific needs. No longer are you tied down to a single, integrated box and forced to add more multi-functional boxes to scale a single function. The DSS model offers built-in flexibility and scalability, reducing your risk by allowing you to adopt a simple "pay as you grow" model. It also increases your ROI by serving as a stable, extensible foundation for launching other revenue – generating services. Because our solution supports the most popular VoIP protocols you have real flexibility to interconnect. Calls between devices using any combination of H.323, SIP, MGCP, or the PSTN are supported, enabling you to tie enterprise and carrier networks together with confidence - and at a profit.

The Pulse Softswitch Solution  is one of the most scalable tandem switching solutions in the industry. Let's prove it with some numbers. You can deploy as few as 120 or up to 20,000 VoIP ports in a single rack – depending on the combination of media gateways you deploy. The Class 4 Call Manager can support over 2.5M BHCA (Busy Hour Call Attempts) per rack. Impressive numbers – any way you cut it.

In today's competitive telecom market, service providers looking to lower operating costs and enhance service capabilities by deploying a converged, packet-based voice and data network must be smarter than ever about evolving their infrastructures. Pulse understands those needs and concerns.

The Pulse Softswitch solution enables wholesale transit and termination of voice traffic over global IP networks for large service providers, backbone operators and regional carriers. Wholesale VoIP is a field-proven application of our integrated, distributed softswitch solutions. Service providers who want to offer retail long distance and international prepaid calling card services can also deploy the PSTN Access solution and enjoy the same great benefits as wholesale carriers.

The solution offers all the elements required for deploying and operating these services, including seamless transfer of subscriber billing, routing and rating information across disparate networks, SS7 connectivity to telecommunications networks in various countries and connectivity to other partner IP networks. You don't have to be everywhere; the role of the VoIP clearinghouse is to bring together regional and local service providers for origination and termination of voice minutes, thus providing seamless billing and a larger footprint.

Service providers who have deployed the PSTN Access Softswitch Solution for wholesale or retail VoIP can now leverage the extensible underlying platform to integrate with the Pulse Softswitch Solution to offer managed services that increase network ROI. The result? Managed services – ranging from simple hosted network services for WAN trunking to converged voice and data services – can be offered across dispersed enterprise sites with centralized management and control.

The Pulse Edge Access Softswitch Solution, consisting of the Clarent Command Center, Class 5 Call Manager and Verso's SIP-based NetPerformer multiservice access devices, can be deployed to offer managed services to enterprise and SoHo markets. And, since the Class 5 Call Manager also supports H.323, the Clarent Edge Access Softswitch works with H.323-enabled third-party gateways, giving you the flexibility to deploy what works best for you. Because Verso's Edge Access and PSTN Softswitch Solutions share critical elements such as the Command Center and Element Management System, you need to deploy them only once for extending voice and data services – another example of our distributed model working hard to save you money.

Carrier-grade, IP-based end-office softswitches can be used as alternatives for traditional switches to deliver primary or secondary line voice services to residential customers. These services can be offered over any broadband connection through third-party customer premise gateways. Broadband service providers who have already deployed Verso's Clarent PSTN Access Softswitch can now integrate it with a Edge Access Softswitch to extend feature-rich voice services to the residential and SoHo market. This is yet another business model that can be built simply and quickly using our proven, distributed softswitch architecture.


Pulse has years of experience integrating VoIP systems including calling cards, call shops, hosted centrex, wholesale and termination.  Our Softswitch system is no exception and provides a carrier class solution with advanced VoIP telephone services. Whether your a large CLEC, Cable provider,  entrepreneur or calling card service provider looking to expand your services, the Pulse Sofswitch system provides the total solution and rapid deployment capability.  The Softswitch is scalable from a few hundred users to thousands with non-intrusive license and hardware upgrades.

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  (see Softswitch platform diagram)

The Pulse Softswitch solution provides core functions that allow service providers to offer the latest class 4 tandem/trunking and class 5 telephone offerings to their customers and subscribers. Some of these functions include:

Class 5 Services

• Residential services, including class features
• End-user account management and authentication
• Voice mail services
• Supplementary features- Call Forward All/Busy/No Answer- Caller ID- Call Return- Customer Originated Trace- Call Waiting- Caller ID Block- Selective Caller ID Blocking/Unblocking- Speed Dial- Three-Way Calling*- Call Transfer (conditional/unconditional)- Message Waiting Indicator- Hotline- Video
• Announcement of Number Change- Anonymous Call Rejection- Do Not Disturb- Music on Hold- Simultaneous Ring*
• Three-Way Calling is supported by the C5CM when provided
• Open architecture, standard SIP and H.323 control of media gateways
• H.323 and SIP interconnect to remote softswitch
• GR-303 and V5.2 network interconnect to enable service provider migration to a VoIP infrastructure
• High Availability, N+1 sparing, C5CM routing redundancy
• Multiple protocol (H.323, SIP & MGCP) support with a single C5CM
• DTMF transport type negotiation (Out-of-Band, Transparent, RFC-2833
• T.38 fax relay, fax bypass, modem bypass
• Complete call rating & accounting services for complex rating schemes
• Interactive Voice Response (IVR) supporting applications such as credit card and prepaid services
• Multiple route choices offering proportional and least-cost routing
• Ability to rate calls based on source, destination, and supplementary information
• Flexible configuration for ingress and egress ANI/DNIS normalization
• Call limiting to control bandwidth utilization
• Service creation environment for defining IVR and call control
• Private IP addressing support
• SNMP management and monitoring
• Sun UNIX platforms: runs on a Solaris 8 or Solaris 10 operating system
• RADIUS when interfacing with a Radius Server, such as the I-Master, for subscriber management
• H.323/SIP Gateway Topology Hiding

Class 4 Services

• Interactive Voice Response (IVR) support
• Flexible routing offering proportional and least-cost routing
• Ability to rate calls based on source, destination, and supplementary information
• Single C4CM support for multiple carriers interconnections
• Service creation environment for defining IVR and call control
• Flexible configuration for ingress and egress ANI/DNIS normalization
• Supports Call Back after an initial call is released
• End-user account management and authentication
• Complete call rating & accounting services for complex rating schemes
• Private IP addressing support within the Clarent network
• Compatibility with the entire Clarent product line
• Clarent ThroughPacket™ when communicating with Clarent media gateways
• High Availability, N+1 sparing
• C4CM routing redundancy
• Open architecture, standard MGCP control of media gateways
• Support for varied ANSI and ETSI signaling protocols (CAS, MFCR2, ISDN, ISUP and SS7)
• Multiple protocol support with a single C4CM
• T.38 fax relay, fax bypass, modem bypass
• DTMF transport type negotiation Out-of-Band, Transparent, RFC-2833)
• SS7/TCAP-based Intelligent Network (IN) services
• SNMP management and monitoring
• Sun UNIX platforms: runs on a Solaris 8 or Solaris 10operating system
• RADIUS when interfacing with a Radius Server, such as the I-Master, for subscriber management

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Pulse can provide you all the components and services necessary to implement a complete Software solution.  Please call or email with any questions you may have: