|
1. Telephone System Components
- Analog telephone components
- 2-wire local loop
- Outside plant
- Central Office (CO) components
- Public Switched Telephone Network (PSTN)
- Standards groups
- Tariffs and regulations
2. Local Loop Characteristics
- Cable pairs
- Crosstalk and shielding
- Voltage and current limitations
- Voice-grade line bandwidth
- Loss and transmission levels
- Protection and grounding
- Distortion and attenuation
- Loads and conditioning
- Repeaters and extenders
- Loop testing and sealing current
- 2-wire to 4-wire conversion
3. Central Office Services
- CO configuration
- DTMF tones
- Ground-start signaling
- Loop-start signaling
- Direct Inward Dial (DID) trunks
- One-way and two-way trunks
- Wink-start signaling
- E & M signaling
- Off-Premises Extension (OPX)
- Foreign Exchange (FX) line
- Remote Call Forwarding (RCF)
- Foreign Exchange Station (FXS)
- Foreign Exchange Office (FXO)
- Tie Lines
- T1 access
- T1 signaling options
|
4. Switching Systems
- Voice digitization
- Pulse Code Modulation (PCM)
- Digital switching
- Line and trunk cards
- Switch internals
- Private Branch Exchange (PBX)
- Digital business phones
- PBX features
- PBX management
- Least Cost Routing (LCR)
- Station Message Detail Recording (SMDR)
- Key systems
- FAX signaling
- Traffic engineering: Erlangs
- Office telephone wiring
- Main/Intermediate Distribution Frames (MDF/IDF)
5. Network Services
- North American Numbering Plan
- Carrier interconnect agreements
- Carrier Service Area (CSA)
- Digital Loop Carrier (DLC) systems
- Remote terminals
- Trunk and feature groups
- Carrier Identification Codes (CIC)
- Accessing alternate carriers
- Unbundled Network Elements (UNE)
- Delivering caller ID signals
6. Carrier Network Controls
- In-band Vs Out-of-band signaling
- Signaling System 7 (SS7) system
- Signal switching point
- Signal Transfer Point (STP)
- Signal Control Point (SCP)
- Interconnecting SS7 networks
- Call set-up procedure
- Operations support systems
- Query messages
- Protocols: ISUP, TCAP, SCCP
- SS7 addressing
- SS7 frame structure
- Toll free network administration
- Advanced Intelligent Network (AIN)
- Call flow examples
- AIN services
- Number portability
- Mobile services
|
