The Nortel Networks Digital Mobility Phone 7420 User Guide is a user manual for the Nortel 7420 handset. The handset is known for its high battery capacity, practical weight, size, and design. It is compatible with Norstar MICS 7.0 or greater, Norstar CICS 7.0 or greater, and BCM 3.7 or greater Nortel Networks host systems.
The Digital Mobility Phone 7420 is a cordless handset designed for flexibility and mobility, offering high battery capacity and a compact design. This guide explains safety precautions, charging procedures, and basic operation.
Key sections cover getting started, battery installation and charging, handset display functions, menu navigation, making and answering calls, text messaging, and troubleshooting. Detailed instructions help users configure the device and maintain optimal performance.
| Battery type | NT7B65LD |
|---|---|
| First‑charge time | 14‑16 hours |
| Normal charge time | approximately 3.5 hours |
| Recommended charging temperature | 0 °C to 25 °C |
Charge the handset for 14‑16 hours the first time you use it.
The handset uses battery type NT7B65LD only.
Charge the handset in a room between 0 °C and 25 °C.