Analog Telephone Devices
Telephone analog device testing includes performance tests for telephone handset, handset and speakerphone acoustics, network interface and signaling. Additional performance requirements are provided for Cordless, Caller-ID, Answering Machine devices, and Environmental considerations.
- Handset (TIA-470.110 narrowband, TIA-470.112 wideband)
- Receive
- Send
- Sidetone
- Stability
- Speakerphones (TIA-470.120 narrowband, TIA-470.122 wideband)
- Receive
- Send
- Stability
- Headset (TIA-470.130 narrowband, TIA-470.132 wideband)
- Receive
- Send
- Sidetone
- Stability
- Echo Control (Speakerphones and Handsets) (TIA-470.140)
- Conversational Gain (TIA-4965)
- Handset acoustic output gain
- AST Custom test procedures for parameters not covered by standards:
- Acoustic Echo Control (AEC) characteristics
- Line Echo Control (LEC) characteristics
- Speakerphones switching (based on IEEE-1329)
- Double-Talk characteristics
- Perpendicular (Axial) orientation testing
- Transverse (Radial) orientation testing
- Measuring performance of:
- Field Intensity
- Frequency Response
- Distortion
- Noise
- Signal-to-Noise ratio
- RF Range (TIA-470.310)
- Simulated Range testing procedures
- Field range testing procedures
- Cordless Features (TIA-470.320)
- Talk-time and Standby-time
- Multi-handset
- Indicators (low battery, out of range)
- Battery Charging Analysis (AST Custom)
- Initial Charge Profile
- Talk Times
- Near Field
- Far Field
- Discharged (Dead) Battery Charge Profile
- Stand-by Times
- Resistance and Impedance (TIA-470.210)
- On-hook resistance and Impedance
- Off-hook resistance and Impedance
- Alerter Acoustic and Response (TIA-470.220)
- Alerter Sensitivity to Ring Signals
- Alerter Acoustic Output
- Network Dialing and Signaling (TIA-470.230)
- Pulse Dialing
- Flash Signal
- DTMF Dialing
- Type 1 On-hook CID
- Type 2 Off-hook CID
- VMWI
- Message Format
- CAS Detector
- Measuring reception performance for:
- FSK signal parametrics
- CAS signal parametrics
- Impairments due to:
- Noise
- DC shifts, OSIs, Line Reversals
- Dropouts
- Message Format
- Message Types
- Parameters
- Preamble
- Markout
- Exception Handling
- Out-of-range data
- Missing data
- Checksum errors
- Immunity Radiated Electric Field (E-field) Interference
- Immunity Conducted Interference on Signal Leads
- Immunity Conducted Interference on Power Leads
- Measuring performance of:
- Receive level of acoustic output
- Transmit level of electrical output
- Functionality during application of the interference
- Lightning Immunity
- Signal leads
- Power leads
- Electro-Static Discharge (ESD)
- Air discharge
- Direct contact discharge
- In-direct contact discharge
- AC Power Variations
- Transient interruptions
- Short term voltage sags
- long term interruptions
- Temperature and Humidity
- Operating conditions
- Storage conditions
- Drop Testing
- Packaged
- Unpackaged
- Vibration
- Signal recognition
- Immunity to noise
- Triggering events
- Inter-operability
- OGM, ICM message frequency response, output levels, input thresholds.
- Ring signal detection and rejection
- Parallel phone detection
- VOX timeout and threshold
- Network DC signal detection and rejections
- Remote access capabilities