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• Telephony FAQs
• How do I install telephone wiring?
• What are Tip and Ring?
• What is a 66 block?
• What is a 110 block?
• What is ground start?
• What is loop start?
• What are the frequencies of the telephone tones?
• What are the DTMF tone frequencies?
• What are the cordless phone frequencies?
• What is Caller-ID?
• How do I block Caller-ID?
• How do I defeat Caller-ID blocking?
• What is NEBS?
• What is TL1?
• What is a LATA?
• What is IntraLATA?
• What is InterLATA?
• What is an RBOC?
• What is an LEC?
• What is a CLEC?
• What is an IXC?
• What is SS7?
• What is the PSTN?
• What is POTS?
• What is a PBX?
• What is a VMB (Voice Mail Box)?
• What is an ACD?
• What is TTY/TDD?
• What are the types of call center services?
• What is call center outsourcing?
• What is a conference call center?
• How do I reduce conference call noise?
• What are common call center solutions?
• What is Computer Telephony Integration (CTI)?
• What is computer telephony software?
• What is call center software?
• What is an automated dialer?
• What is predictive dialer software?
• What is IVR?
• What is IVR software?
• What is teleconferencing?
• How does video conferencing work?
• What are the ABCD tones?
• What is the voltage used to ring a telephone?
• What are all of the * (LASS) codes?
• What is ANI (Automatic Number Identification)?
• What is an ANAC number?
• What is a ringback?
• What is a loop?
• What is a CNA number?
• What is a reverse telephone directory?
• What are numbers that always ring busy?
• What are numbers that temporarily disconnect phone service?
• What is war dialing?
• Is war dialing illegal?
• How can I make a lineman's handset?
• Where can I purchase a lineman's handset?
• What are Country Direct Numbers?
• What are phone switches?
• What is a milliwatt test line?
• What are 958 and 959 numbers?
• What are CLLI codes?
• What is DATU?
• What is a Proctor Test Set?
• What is a telecommunication audit?
• What is call back security?
• What is phone phreaking?
• What is a Blue Box?
• Do Blue Boxes still work?
• What is a Red Box?
• What is a Black Box?
• What do all the colored boxes do?
• Who invented the telephone?
• What is a Telephone Network Interface Device?
• What are Phone Prefixes?
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Where can I purchase a linemap´s handset?

Contact East
335 Willow Street
North Andover, MA 01845-5995
(508)682-2000

Jensen Tools
7815 S. 46th Street
Phoenix, AZ 85044-5399
(800)426-1194

Specialized Products
3131 Premier Drive
Irving, TX 75063
(800)866-5353

Time Motion Tools
12778 Brookprinter Place
Poway, CA 92064
(619)679-0303

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