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50 Cards in this Set
- Front
- Back
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advantages of Voice
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not on public network, allows customers to access vmail, anywhere, # forwarding, unlimited long distance calling, view billing online, e911
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list 3 types of calls
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local, long distance, international
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how do you make an international phone call
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011 + 1 + phone number
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what does eMTA stand for
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embedded multimedia terminal adapter
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generic term meaning all forms of telephony or telephone like transmissions over an IP based network
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IP telephony
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technology used to transmit voice and related calls over a data network
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voice over internet protocol
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phone service that transmits phone calls over a public network such as the internet
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internet phone
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phone service, such as XVoice, transports calls over a private network
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ip phone/ip voice
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a measure of telecommunications, voice, data, and or video
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quality of service
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the delay between transmission of information and its arrival
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latency
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a variation in delay between packets. extreme cases cause packets to arrive out of order
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jitter
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QoS manages what type of service
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latency
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comcast provides dqos in the following ways
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voice packets are given priority over other types of data traveling within the comcast network, this managed delivery ensures high quality voice packet interpretation, ip voice service manage latency while service that use the public internet cannot since on the public internet ther i no priority system of information, xfinity voice does not use the public internet as part of its network
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PSTN means what
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public switched telephone network
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POP means what
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Point of Presence
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benies of IP voice
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faster, reliable, videophone, efficient use of infrastructure
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competitors?
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frontierlink, centurylink
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safety of voice before install:
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disconnect ILEC at the eMTA or NID, take phone line off of the hook
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what does ILEC stand for
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Incombent Local Exchange Carrier
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telephone switch
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device that routes calls
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PSTN
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used by ILECs
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soft switch
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central office server that routes calls to other IP based phones
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subscriber line
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dedicated telephone line to a specific subscriber
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POP
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demarcation point
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if tele is in the on hook state
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then tip voltage is about 0
ring voltage is -48 |
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if tele is off of the hook
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then tip voltage is about 20
ring voltage is about -28 |
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8 volt is what?
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is the off hook circuit
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REN is what
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Ring Equivalence Number
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total REN value in an individual circuit should be no higher than what
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5
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what other devices have REN besides a phone
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fax, caller id box, alarm, monitoring device, PoS terminal, 56K modem
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two line wire activity
primary is what secondary is what |
green = tip - primary
red = ring - primary black = tip - secondary yellow = ring - secondary |
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rj-11 has how many wires
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2
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rj-14 has how many wires
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4
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rj-45 has how many wires
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8
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if customer has an alarm system, what should you do
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have the customer notify the alarm company and have them test the systems functionality, then, ask the customer to place the alarm in test mode
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what is occuring if the eMTA power light is flashing
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power failure
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how do you know if the battery is low
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battery light is flashing
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what does IVR mean
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interactive voice response
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the IVR will timeout after how many unsuccessful attempts
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3
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what does it mean to port a number
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transfer a phone numbr from another telphone provider
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what does NID mean
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Network Interface Device
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what type of jack is inbetween the NID and call CPE in the house
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RJ31x
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what are MDUs
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apts, condos, townhome, retirement community
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alarm equipment is often tip to ring.....
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polarity sensitive
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the secondary pair is typically used to route dial tone from the alarm panel to where
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the NID location
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what is the rule of three for CDV
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confirm the new phone number, access voicemail, show customer how to use digital voice center
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how can you courteously interrupt a customers phone call
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alert the customer if you interrupt a call, be proffesional, announce your presense politely
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four steps of troubleshooting CDV
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I, I, R, V
identify isolate repair verify |
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what percent of eMTAs are faulty
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1%
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should the customer ever move the eMTA
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NO
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