My sister uses this phone. She
likes the long-lasting battery life.
I hate the size and design.
IMEI Number: *#06#
Default Security Code: 12345
Software Version: *#0000# For checking the phones software (SW) - called
firmware revision information. e.g.: Version V. 4.51 (26-03-98) will display:
Date of software release
Type of phone (900 / 1800 / 1900 / EFR / etc.)
Waranty Code: *#92702689# [*#war0anty#]
Menu: Displays Serial Number.
Displays the Month and Year of Manufacture (0698) Displays (if there) the date where the phone was
purchased (MMYY) you can here set the Purchasing Date. (Warning: You can only do this once - so be careful what
you write) Displays the date of the last repairment - if
found (0000). To exit turn the phone off and then back on.
Enhanced Full Rate Codec (EFR)
Enhanced Full Rate will give you much better sound quality
when you enable it. The new Enhanced Full Rate CODEC
adopted by GSM uses the ASELP (AlgebraicCode Excitation
Linear Prediction) compression technology. This
technology allows for much great voice quality in the same
number of bits as the older Full Rate CODEC. The older
technology was called LPC-RPE (Linear Prediction Coding with
Regular Pulse Excitation). Both operate at 13
kilobits.(but you take up more space on the network, so they
can charge you more). *3370# and EFR will
be activated after a reboot of the phone (consumes more
power). #3370# and EFR will
be switched off after a reboot of the phone.
Half Rate Codec (HR)
Half Rate will give you bad sound quality, which gives the
service provider the opportunity to have more calls on the
network; and you might get a lower charge from them. (Will
give you 30% longer talk-time). *4720# and Half Rate
coded will be activated after a reboot of the phone (better
standby time). #4720# and Half Rate
coded will be de-activated after a reboot of the phone.