Cisco Unified CallManager call-processing products provide cost-effective, highly reliable, call processing and extend Cisco Unified IP telephony features and functions to network devices including IP phones, media processing devices, voice-over-IP (VoIP) gateways, and multimedia applications. There are two variants, Call Manager systems which offer redundant centralised server based processing for up to 30,000 users.

Call Manager Express systems which offer redundant centralised router based processing for up to 240 users. Cisco Unified IP phones lead the IP communications device market and provide a complete portfolio with ease of use, superior audio quality, increased accessibility for people with disabilities, ergonomic physical design, advanced services, and features.

The portfolio includes options for uses from the company lobby to the manufacturing floor to the executive suite, at home, on the road, or in branch offices. Cisco IP Phones support 'SCCP', 'SIP' and 'H323'. Cisco Call Manager (CCM) Cisco Unified CallManager software is the call-processing component of the Cisco Unified Communications system. It is a scalable, distributable, and highly available enterprise IP telephony call-processing solution. Cisco Unified CallManager extends enterprise telephony features and capabilities to packet telephony network devices such as IP phones, media processing devices, voice over IP (VoIP) gateways, and multimedia applications.

Additional services such as unified messaging, multimedia conferencing, collaborative contact centers, and interactive multimedia response systems are made possible through Cisco Unified CallManager open telephony APIs. Cisco Unified CallManager is installed on the Cisco Media Convergence Server 7800 Series of server platforms and selected third-party servers. Cisco Unified CallManager includes the following features:

• Highly scalable, supporting up to 30,000 lines per server cluster
• Ability to support a full breadth of communications features and applications, including SIP-based applications
• Highly available for business continuity, supporting multiple levels of server redundancy and survivability
• Support for a broad range of phones to suit varying user requirements
• Choice of operating system environments: Windows server-based implementation or Linux-based appliance model implementation

Cisco Call Manager Express (CCME) Cisco IP Communications Express is an excellent voice and data solution for customers who are looking for an all-in-one, easy-to-deploy and manage solution for the small to medium-sized offices. It is also a good solution for branch locations where the WAN to remote sites is not yet ready for or not large enough to justify a centralized Cisco Unified CallManager solution, or for companies that have autonomous branch offices that do not plan to add voice to their WAN or require limited voice services.

Cisco IP Communications Express is also a quick and cost-effective way for customers to pilot Cisco IP Communications at one or more sites to familiarize themselves with the technology and then migrate to Cisco Unified CallManager with complete investment protection. Cisco Unified CallManager Express and Cisco Unified CallManager share the same telephones, and they provide a similar customer interface for features, including voice messaging, meaning that customers in a multisite environment who do not need to have an integrated approach of Cisco Unified CallManager could choose to use Cisco Unified CallManager Express in smaller locations and Cisco Unified CallManager in headquarters and larger locations.

Cisco Unity Express, in conjunction with Cisco Unified CallManager Express or Cisco Unified CallManager, delivers localized IP-enabled voicemail and basic automated-attendant applications to meet the business requirements of the small business or branch office. Because there is typically little technical expertise at small-site locations, it has been designed for easy installation and activation. Cisco Unified CallManager Express is a solution embedded in Cisco IOS software that enables a large portfolio of Cisco access and integrated services routers to deliver a comprehensive set of features commonly used by business customers, facilitating the deployment of a cost-effective and highly reliable unified communications solution for the small office.

Why CISCO SYSTEMS® surpasses the Competition

• Market leadership-20 years of experience and expertise in IP innovation
• End to end solution-THE ONLY all-in-one, office in a box solution for SMBs or branch office locations: switching, routing, call processing, auto attendant, voicemail, conferencing, voice gateway, PoE and more!
• Industry-leading security and reliability
• World-class service and support
• Industry-leading investment protection for future growth

To download our quick guide to Cisco's Call Manager Express solutions, click here.