Cisco IP Telephony Overview

Various correspondence networks exist as altogether separate substances, each serving a particular application. The conventional public exchanged phone organization (PSTN) time-division multiplexing (TDM) network serves the voice application; the Internet and intranets serve information correspondences. 

Business necessities frequently power these organizations to interoperate. Accordingly, sending multiservice (information, voice, and video) applications, for example, bound together informing or online client contact focuses requires costly and complex connections between restrictive frameworks, for example, private branch trades (PBXs) and guidelines based information organizations. 

The customary endeavor correspondence cisco ipt  happens on two separate organizations: 

•Voice 

•Data 

Web Ecosystem 

Over the long haul, the Internet (and information organizing innovation all in all) included the customary traffic types. This intermingling as of late began to retain voice and video as applications into the information organization. A few huge Post, Telephone, and Telegraph (PTT) transporters use parcel exchanging or voice over ATM as their spine innovation, and undertaking clients acknowledge virtual trunking, or associating their dissimilar PBXs by means of their wide-territory information organization, to evade significant distance charges. 

By meeting these already different organizations into a solitary, bound together organization, you can start to acknowledge investment funds in various zones, including lower complete expense of possession, cost investment funds, and expanded efficiency. 

Cisco CallManager and Cisco IP Phones give an IP communication arrangement that works on an IP framework. The grouping design of Cisco CallManagers permits you to scale to an exceptionally accessible voice-over-IP (VoIP) organization. 

Cisco Architecture for Voice, Video, and Integrated Data (Cisco AVVID) 

Cisco AVVID envelops the accompanying parts: 

•Converged customer gadgets

•Hardware/programming 

•Directory administrations 

•Call preparing 

•Telephony/information applications 

•Network the board 

•Service and backing 

Cisco AVVID arrangements empower you to 

•Deploy IP-empowered business applications 

•Implement a norms based open engineering 

•Migrate to a joined organization time permitting outline 

Cisco AVVID empowers you to move from keeping a different information organization and a shut, restrictive voice PBX framework to keeping one open and norms based, merged organization for all your information, voice, and video needs. 

Applications 

The accompanying rundown gives some voice and video applications in the application layer of Cisco AVVID: 

•Cisco Unity—The Cisco Unity informing application gives voice informing to big business interchanges. 

•Video—IP-TV and IP-video conferencing items empower distance learning and workgroup coordinated effort.

•Cisco IP IVR—As an IP-controlled intelligent voice reaction (IVR) arrangement, Cisco IP IVR, joined with Cisco IP AutoAttendant, gives an open and highlight rich establishment for conveying IVR arrangements over an IP organization. 

•Cisco CallManager Attendant Console—This adaptable and versatile application replaces the customary PBX manual specialist support. 

•Cisco IP SoftPhone—The Cisco IP SoftPhone, a product, PC based telephone, gives correspondence capacities that increment productivity and advance cooperation. 

•Cisco Personal Assistant—Cisco Personal Assistant specifically handles calls and encourages you settle on cordial decisions. Cisco Personal Assistant gives rule-based call steering, discourse empowered catalog dialing, voice message perusing, and straightforward specially appointed conferencing. 

Call Processing 

Cisco CallManager, a product just call-handling application, appropriates calls and highlights and bunches telephones, locales, and gatherings over an IP organization, which permits versatility to 30,000 clients and triple call-preparing repetition. 

Cisco CallManager gives flagging and call-control administrations to Cisco-incorporated applications, just as to outsider applications.