D13 VoIP Call Processors and Endpoints
How many users can the TSC/TVSS support?
200 VoIP subscribers
How many digital and analog trunks can the TSC/TVSS support?
256 VoIP trunks
What is the VoIP telephone initialization process?
5-step process (4 without DHCP): 1) Phone connected to switch, receives PoE 2) Switch IDs which VLAN phone should be on (using Cisco Discovery Protocol), delivers voice VLAN 3) (DHCP only) phone requests IP from DHCP server, otherwise IP is statically assigned 4) Phone contacts TFTP server for configuration file and loads it 5) Phone registers with CME or Cisco Call Manager using Skinny Client Control Protocol (SCCP), can now TX/RX calls
How many and what type of connections can the TSC/TVSS physically interface with?
8-port (ethernet) 2 T1/E1 ports
What are the functions of a call processor?
Call processor/controller runs call processing software within a VoIP network, including: call processing, device control, directory service, computer telephony integration (CTI), trunking, and gateway support
What is the purpose of an Inter-Cluster Trunk?
Communication between clusters The main trunk extension devices inside a CUCM network
What is the purpose of Dial Peers?
Dial peers are software structures that bind a dialed digit string to a voice port or IP address of the destination network Required when running CME for calls beyond the local site
Define a cluster
Multiple servers (max of 8) can be chained together and managed as one, scaling up to 30,000 users per cluster.
What are the power options associated with Cisco IP phones?
PoE switches or power bricks (for when PoE not available)
What is the purpose of a Cisco Unified Communications Manager Express (CME)?
Provides call processing on VoIP network
What is the purpose of a Cisco Unified Communications Manager (CUCM)?
Runs on a dedicated server and provides call processing for up to 10,000 users.
What is the function of a subscriber server?
Subscriber servers are the primary call controllers responsible for registering phones and setting up calls
What is the role of the TFTP server in IP networking?
TFTP server acts as a central repository for all required configurations for phones (or other devices) on the network
What is the purpose of the Tactical Session Controller (TSC) / Tactical Voice Switching System (TVSS)?
TVSS is a VoIP management system fielded as SL-3 with DEOS Purpose is to extend VoIP traffic over the network
What is the function of a Publisher Server?
The first CUCM server to be set up. The only server whose database can be altered.
How many and what type of phones come SL-3 to the TSC/TVSS?
0 Cisco IP Phones 3 Teo 7810 IP Phones
What are the (4) characteristics of the voice VLAN?
1) Increased performance 2) Improved manageability 3) Physical topology independence 4) Increased security
What are the four main components of Call-Routing?
1) route patterns 2) route lists 3) route groups 4) gateways/trunks
