CCNA Voice Portable Command Guide 1587204428_ch01.pdf

More documents

Recommendations

Info

2 Voice Fundamentals Table 1-1 Voice Fundamentals – Concepts and Acronyms Acronym/Concept Description 802.1Q IEEE Standard specifying a trunking protocol that tags frames with the VLAN number they are sourcing from Analog Signal Signaling method used to measure change in a continuous nature ANI Automatic Number Identifi cation CAS Channel Associated Signaling CCS Common Channel Signaling CDP Cisco Discovery Protocol CLI Command Line Interface CME Cisco Unifi ed Communications Manager Express Codec Encoding/Decoding mechanism for compressing voice across a data network. The term’s original meaning is coder/decoder. CUC Cisco Unity Connection CUCM or CM Cisco Unifi ed Communications Manager (previously known as Call Manager (CM) CUP Cisco Unifi ed Presence E.164 PSTN International number plan Digital Signal A string of bits (1s or 0s). E&M (Ear and Mouth) or (Earth and Magnet) FXO Foreign Exchange Offi ce FXS Foreign Exchange Station NANP North American Numbering Plan NTP Network Time Protocol PBX Private Branch Exchange PoE Power over Ethernet PSTN Public Switched Telephone Network RBS Robbed Bit Signaling RTCP Real-Time Transport Control Protocol RTP Real-Time Transport Protocol SCCP Skinny Client Control Protocol SIP Session Initiation Protocol SRST Survivable Remote Site Telephony TDM Time Division Multiplexing is the process of transmitting multiple channels of voice or data in specifi c time slots over a single digital connection.
Cisco VoIP Structure Common Topologies 3 It is beneficial to know what products exist in the Cisco world for voice. Depending upon the size of the organization, numerous solutions are available: ■ Cisco Unified Communications Manager: This solution is the pinnacle of the Cisco Voice solution. Cisco Unified Communications Manager provides all the functionality you would want or need within an enterprise-class voice solution. This is the ideal solution for a large organization that requires the complexity, yet granularity, of having an enterprise voice system. You can add voicemail functionality to this system when implementing Cisco Unity Connection (CUC). You can also add presence features that will be discussed later within this portable command guide. The presence functionality is known as Cisco Unified Presence (CUP). This is an extremely flexible and scalable solution. ■ Cisco Unified Communications Manager Express: This solution is for the small- to medium-size business that does not require the complexity, nor the extensive scalability that Cisco Unified Communications Manager has to offer. It is an ideal solution for a small- to medium-size business that would like a subset of the features that CUCM offers. This can also be used for a remote office solution with CUCM utilizing SRST. ■ Cisco Unified Communications Manager—Business edition: Cisco developed this solution for an organization that wants the full-blown implementation of CUCM; however, the organization will never grow beyond 1,000 users (Note: At the time of this writing, three business editions are available. This is a great solution at a great price point for the small- to medium-size organization. ■ Cisco Unified Communications 500 Series for Small Business (UC500): Cisco developed this solution for the small business market that just needs a quick, easy to set up and configure platform to get its organization up and running on a VoIP solution. This system scales up to 138 users. This is truly meant for the small business market. Common Topologies This section describes common topologies that you find in the industry and in textbooks when studying voice technologies and bridging the gap between data and voice networks. Figure 1-1 represents the traditional voice network for a traditional PBX connected to the PSTN via a copper ground start trunk or loop start trunk. This also shows traditional phones as terminals and a traditional fax machine, in addition to a connection to the voicemail system.
Page 1: CHAPTER 1 Voice Fundamentals for Un
Page 5: Common Topologies 5 Figure 1-3 repr

CCNA Voice Portable Command Guide 1587204428_ch01.pdf

Create successful ePaper yourself

Delete template?

Save as template?