D12 VoIP Call Processors and Endpoints

200

number of users the TVSS (TSC) can support in accordance with Tech Manual TM11333C-OI/1 & TVSS User Manual

Inter-Cluster Trunk (ICT)

the main trunk extension device inside of a CUCM network

characteristics of the Voice VLAN

1. Increased performance 2. improved manageability 3. physical topology independence 4. increased security

CME (Cisco Call Manger Express)

VoIP management application which runs on an Integrated Services Router's (ISR) Internet working Operating System (IOS) IOT provide call processing in a VoIP network

TVSS (Tactical Voice Switching System) or TSC (Tactical Session Controller)

VoIP management system that is fielded as an SL-3 component to the DEOS.

identify the purpose of a CUCM (Cisco Unified Communications Manger)

an application which runs on a dedicated server providing call processing services for up to 10,000 users. No matter how many Cisco Call Managers are in a cluster (max of 8), the first server is always the Publisher server.

functions of a call processor

call processing, device control, directory service, computer telephony integration (CTI), trunking, and gateway support.

VoIP (Voice over Internet Protocol) Telephone Initialization Process

five step process (four steps if statically assigning IP addresses a. The VoIP telephone is connected to the switch and receives PoE b. Switch IDs VLAN using Cisco Discovery Protocol (CDP) c. DHCP Server assigns IP to phone (If not set as a static IP. If statically assigned, skip to step d. d. The VoIP Phone loads config file from the TFTP server. e. The VoIP Phone registers with the CUCM/CME using Skinny Client Control Protocol (SCCP) and is now able to place and receive calls.

2 T1/E1

number and type of connections the TVSS (TSC) can physically interface

3 Teo IP phones

number and type of phones that come SL-3 to the TVSS (TSC)

256

number of digital and analog trunks the TVSS (TSC) can support

Dial Peers

software structure that binds a dialed digit string to a voice port or IP address of the destination network. - required to be programmed when running Call Manager Express to facilitate calls beyond your local site

Cluster

Multiple servers (max of 8) can be clustered together and managed as a single entity; yielding scalability of up to 30,000 users per cluster

poe, Power bricks

power options associated with Cisco IP phones

4 main components of CUCM call routing

route patterns (dialed numbers), route lists (primary and alternate call routes), route groups (list of gateways/trunks), and gateways/trunks (paths out to other networks)

TFTP Server

serves as a central repository for all required phone configurations in the network.

Publisher Server

the only server whose database can be altered.

Subscriber Server

the primary call controllers responsible for registering phones and setting up calls