Ericsson DT288 User Manual page 129

Performance
Battery
Stand-by time
Call time
Charge time
Volume
Ring signal
Earpiece
Ringing signals (defaults)
External call
Internal call
Call back
Phone book
Maximum name length
Maximum number length
Entries
NiMH, 500 to 1000 charge cycles
up to 150 hours
up to 15 hours
3 hours maximum
Seven step adjustable volume from off to 85 dB (A) at 30 cm
Ten step adjustable
0.4 s on, 0.2 s off, 0.4 s on, 5 s off
1 s on, 5 s off
0.32 s on, 0.2 s off
12 characters
24 digits
100
Reference 129