Cisco Packet Telephony Center Virtual Switch

Cisco Packet Telephony Center Virtual Switch Version 3.1

Data Sheet

Cisco Packet Telephony Center
Virtual Switch Version 3.1

Cisco® Packet Telephony Center Virtual Switch (PTC-VS) provides the carrier-class network-management functions, scalability, and reliability required by telephony centers and telecommunications service providers. Cisco PTC-VS features include virtual entity and management concepts, multiuser support, multithreaded programming, and Web-browser-based client access. Refer to Table 1 for a summary of Cisco PTC-VS features and benefits and the Cisco PTC-VS white paper for detailed information.

Product Description

Cisco PTC is a carrier-class service- and network-management system that provisions the business voice services, including the Cisco Voice-over-IP (VoIP) Softswitch, the virtual-packet-voice-switch connection between the public switched telephone network (PSTN) and the VoIP service provider network, the Cisco CallManager Express, and the Cisco PGW Route Server Complex. Cisco PTC as the voice domain manager provides the foundation for fault, configuration, accounting, performance, and security (FCAPS) capability, thus enabling service providers to deliver a comprehensive, end-to-end management solution.

The Cisco PTC-VS Value Proposition

Cisco PTC-VS enables the rapid adoption of new packet voice network technology by providing network-management tools comparable to those in the PSTN environment. This helps simplify network management and enables integration of the new VoIP network for coexistence with the traditional PSTN, see Figure 1. Service providers are able to reduce costs by using the more efficient packet network and taking advantage of its value-added services.

Cisco PTC-VS offers virtual entity management for the packet voice network similar to that of the traditional time-division multiplexing (TDM) networks (to achieve logical functioning and usability equivalent). Cisco PTC-VS Version 3.1 adds support for the Cisco CallManager Express and the Cisco PGW Route Server Complex.

Cisco PTC-VS enables service providers to lower the total cost of ownership, improve business quality, accelerate delivery of service, accelerate time to revenue, and reduce customer turnover.

Figure 1
Example of Cisco PTC-VS Managing an H.323 VoIP

Table 1   Features and Benefits of Cisco PTC-VS

Features  Benefits 
End-to-End Provisioning

Simplified network management

Provides increased network availability

Default network element configuration and service profiles

Simplifies network service activation

Support for customized configuration and service profiles

Provides optional provisioning with user-modified configuration and service profiles

Supports non-profile-based service activation

Executes service activation with nonsupported, user-specified commands

Consistent provisioning method

Enables efficient execution of provisioning tasks

Detection of network element configuration

Provides Cisco IOS® Software-level information on the logical association of network elements

Configuration of virtual entities


Automates configuration within a defined boundary (enterprises and sites, for example)

Support for tiered network configuration

Allows provisioning of hierarchical network deployments

Validation of configuration integrity

Significantly reduces service activation errors

Single-console data entry

Provides a multiaccess, single-client interface

Support for multiple technologies


Integrates and simplifies management of Cisco CallManager Express, Cisco PGW Route Server Complex, Signaling System 7 (SS7), H.323, Media Gateway Control Protocol (MGCP), and dial-plan configurations

Cisco Networking Services Integration Bus configuration transport

Facilitates delivery of Cisco IOS Software-based configuration commands

Element-management-system (EMS) interoperability

Provides a single point for network element access (where applicable)

Exclusive service activation control

Eliminates resource contention during service activation process

Dial-plan verification feature

Finds inconsistencies and errors in a current or proposed dial-plan configuration

Call-path verification

Reduces routing errors; verifies routes before committing them into the network

Store and retrieve dial-plan designs

Enables users to store multiple dial-plan configurations and import them for later use, or roll back to a previous dial-plan configuration

Integrated dial-plan provisioning (H.323 only)

Simplifies network service activation

Access of Cisco IOS Software features through a GUI

Enables network administrators to deploy larger, more complex, and more efficient networks and to take advantage of the rich feature set of Cisco IOS Software without additional operational complexity and cost

Drag-and-drop provisioning

Simplifies network element configuration and network service activation


Graphic display of virtual switch

Provides visual representation of managed object

Graphic display of enterprises, regions, and sites

Provides visual representation of Cisco CallManager Express and Cisco PGW Route Server Complex

Diversified network element support

Consolidates and simplifies management of differing network element types

Browser-based user interface

Provides graphical network view and system administrative access

Comprehensive graphical network display

Provides real-time visual snapshot of entire physical and logical network architecture

Maintenance of logical and physical network inventory

Consolidates and retains database of complete network architecture

Automated detection of changes in network architecture

Maintains network database consistency

Synchronized network database

Maintains updated network database information

Detection of network element configuration

Maintains updated configuration of network element logical association

Network inconsistency alert

Provides simplified detection of network anomalies

Support for IP-to-IP regions

Provides graphical view of IP-to-IP transit regions

Support for network inventory database export


Makes database content accessible with northbound application programming interface (API) to Cisco Info Center ; Cisco Info Center uses this topology information to make advanced alarm correlations

Support for tiered network architecture

Provides graphical view of hierarchical network structure

Carrier-Class Features

Simultaneous multiuser system console

Supports multiple concurrent administrative login sessions

Role-based system administrative enforcement

Supports hierarchical user administrative privileges

Role-based security enforcement

Supports restricted user administrative privileges

Third-party integration allowed

Open API simplifies integration of external applications

Operations-support-system (OSS) integration

Northbound interface supports OSS integration

Simple Object Access Protocol (SOAP) Northbound Interface

Simplifies OSS integration efforts


Supports up to large-scale network deployments

Network and database synchronization

Enables database to maintain current network topology data

Database backup and restore

Preserves system database

Support for network event messages

Makes network event information available with integrated Cisco CNS Integration Bus

Event-based notification

Accepts and propagates information regarding network topology changes

User activity tracking

Maintains audit and activity log for all administrative actions

Automated end-to-end provisioning

Provides complete flow-through service activation

Support for simultaneous service activation requests

Multithreaded task execution

Flexible system architecture

Supports adaptable system deployment

Independent client-server operation

Supports distributed client-server operation

Single-server, multiple-client operation

Many-to-one client-server access

Monitoring of health and state of application server processes

Automatically detects failure or malfunction of application server; improves system availability

Cisco PTC-VS consolidates and simplifies VoIP network-management tasks by offering a consistent network service-provisioning model. Cisco PTC-VS is a potent management solution that provides holistic management of voice networks using virtual entity concepts (Figure 2), including:

  • Enterprises and sites that can be defined to represent the business voice service topology
  • A virtual SS7 gateway that deals with dependencies between an H.323 or MGCP gateway and a signaling controller in which SS7 traffic is converted to Q.931 signaling protocol for the gateway
  • A virtual zone that deals with dependencies between gateways within a zone as well as between gateways and gatekeepers
  • A zone connection that deals with dependencies between gatekeepers, or between gatekeepers and directory gatekeepers

Figure 2
How Cisco PTC-VS Manages Virtual Entities

In addition to providing support for virtual entities requiring consistent configuration of multiple network devices, Cisco PTC-VS supports configuration operations for an entire region, enterprise, site, or zone, giving users a means of performing high-density and bulk-provisioning tasks. For example, this feature enables an operator to apply a given gateway configuration to all gateways for a zone or region. In fact, many Cisco PTC-VS provisioning operations lead to multiple management requests issued to various managers and network elements behind the scenes to provide simplified, holistic virtual entity operation.

Network Management—Voice Routing

In addition to provisioning and topology, Cisco PTC-VS Version 3.1 adds the ability to manage voice routing dial plans for the elements described in Table 2, including the Cisco CallManager Express, the Cisco PGW Route Server Complex, gateways, gatekeepers, and directory gatekeepers in the H.323 network. Cisco PTC-VS enables administrators to design, configure, deploy, and manage dial plans in Cisco H.323 VoIP networks. Through its GUI, Cisco PTC-VS centralizes and coordinates call-routing configurations for thousands of VoIP gateways and gatekeepers within a single application. A good dial plan makes optimal use of network resources, ensures that all calls are routed appropriately, implements business rules for routing efficiencies, and minimizes PSTN toll charges. The dial plan can be the most complex part of the VoIP network to configure. Cisco PTC-VS accomplishes these dial-plan objectives via a wizard-driven user interface, reducing the complexity and simplifying the task of managing, adding, deleting, and modifying the dial plan.

Table 2   Network Elements Supported by Cisco Packet Telephony Center

Cisco PTC-VS 3.1 Supported Platforms
Device Name EMS Name  Supported Release 
Cisco IOS Devices Supported

Cisco AS 5800 (gateway)

12.1(5)XB, 12.2(7c), 12.2(2)XU3, and 12.2(11)T

Cisco AS 5300, AS 5350, and AS 5400 (gateway)

12.1(5)XB, 12.2(7c), 12.2(2)XU3, and 12.2(11)T

Cisco 7200 (gateway and gatekeeper)

12.2(2)XA1, 12.2(7c),12.2(2)XU3, and 12.2(11)T

Cisco 1700, Cisco 2600XM, Cisco 3600, and Cisco 3700 (Cisco CallManager Express)


Cisco 7200 and Cisco 3600 (gatekeeper)

12.2(2)XA1, 12.2(2)XU3, and 12.2(11)T

Cisco 3600 and Cisco 3700 (IP-IP gateway)


Cisco 3600 and Cisco 7200 (IP-IP gatekeeper)


Non Cisco IOS Devices and EMSs Supported

Cisco MGX® 8230, MGX 8250, MGX 8850—Cisco Processor Switch Module 1 (PXM1)


Cisco Voice Interworking Services Module (VISM)



Cisco MGX 8850 only


Cisco PXM 45


Cisco PGW 2200

9.2x, 7.4(12)

Cisco BTS 10200




Cisco Element Management Framework (EMF)


Cisco Media Gateway Controller Node Manager (MNM)

2.1(2E with patch 1) and 2.3.1

Cisco Media Gateway Manager (MGM)



Cisco Networking Services Configuration Engine (for Solaris)


Cisco Networking Services Configuration Engine (standalone appliance)


Product Summary

In response to the critical need for an effective, comprehensive VoIP network-management tool, Cisco Systems® has delivered Cisco PTC-VS, engineered to provide vital functions for overall VoIP network management and service provisioning. Its multiaccess Web GUI empowers customers with a central entry point for complete network administration. Cisco PTC-VS can detect all physical network elements and create the virtual network entities or objects that are part of the voice service network. Detailed information about these elements is retained in an object model and is dynamically updated as events occur in the network, allowing Cisco PTC-VS to maintain synchronization and accurately reflect the network topology. The object model is critical to the creation and intelligent management of the virtual objects.

Cisco PTC-VS is designed with carrier-grade scalability, making it suitable for deployment in small-, medium-, or large-scale VoIP networks. Because VoIP technology deployments are increasing, Cisco PTC-VS is the perfect tool to significantly reduce the complexity involved in managing these packet voice networks, allowing technicians and engineers responsible for network management to perform simplified, end-to-end provisioning tasks. The Cisco PTC-VS open interface architecture offers access to customers' existing OSSs and eases efforts for third-party integration as well.

Cisco PTC-VS helps service providers realize considerably reduced network operations and management costs, reduced time to market for new customers and services, and reduced time to revenue, resulting in greater customer stability. Cisco PTC-VS contributes to increased revenue and a reduction in the service provider's total cost of network ownership.

Platform Support and System Requirements

  • Sun Fire V120, Sun Netra T1
  • One CPU
  • 1 GB of RAM
  • 8-9 GB of disk space
  • 1 GB of swap space

For more information about Cisco PTC-VS solutions, visit: index.html.