VDV Chapter 1 (Cisco Voice Video Data Chapter 1) with Complete Solutions!!

analog signal - ANSWER-An analog signal uses a property of the device that captures the audio signal to convey audio information. In today's world, where everything is connected through some form of cabling, electric currents are used to send analog signals. loop start signaling - ANSWER-A method of signaling that relies on connecting the tip and ring wires connecting to a device to complete an electrical circuit; typically used in devices connecting to the PSTN. Loop start signaling is the typical signaling type used in home environments. Loop start signaling is susceptible to a problem known as glare. ground start signaling - ANSWER-A method of signaling that relies on grounding wires connecting to a device to signal a new call; typically used in PBX system to avoid glare. glare - ANSWER-Glare occurs when you pick up the phone to make an outgoing call at the same time as a call comes in on the phone line before the phone has a chance to ring. time-division multiplexing (TDM) - ANSWER-TDM allows voice networks to carry multiple conversations at the same time over a single, four-wire path. Because the multiple conversations have been digitized, the numeric values are transmitted in specific time slots (thus, the "time division") that differentiate the separate conversations. channel associated signaling (CAS) - ANSWER-Signaling information is transmitted using the same bandwidth as the voice. CAS actually "steal" binary bits that would typically have been used to communicate voice information and use them for signaling. common channel signaling (CCS) - ANSWER-CCS dedicates one of the DS0 channels from a T1 or E1 link for signaling information. This is often called out-of-band signaling because the signaling traffic is sent completely separate from the voice traffic. When using CCS configurations with T1 lines, the 24th time slot is always the signaling channel. When using CCS configurations with E1 lines, the 17th time slot is always the signaling channel. Signaling Syst