Siemens SL45

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Siemens SL45 (no image)

The Siemens SL45 is a GSM candybar phone released in December 2000. It was aimed at professional users, with many organizer features and a hefty price tag.

The SL45 is widely regarded as one of the most influential phones, as it was one of the first phones to include a MP3 player and expandable storage with MMC (MultiMedia Cards), though it was not the first at either of these.[1]

A 32 MB card was included in the box, and was used to store UI languages, graphics, contacts, messages, and audio. Several demos and languages were pre-loaded on the card, giving only 16 MB of free space.[2] The phone unofficially supports some cards up to 1 GB.

A serial data cable, SyncStation, and stereo headphones were also included. The headphones are required for using the MP3 player function. The included data cable could be used for flashing the phone, popularizing firmware upgrades and modifications.

The SL45 supports single chord polyphony via MIDI, however, the preset ringtones are monophonic in square-wave synth in SRT format (proprietary format used by Siemens, similar to Nokia's NRT format, but can be converted to MIDI and vice versa). The built-in composer has three slots for custom melodies in the internal storage, the MMC can store more.

Other notable features of the SL45 include WAP, infrared, and a dictaphone (voice recorder). The phone has a metal body, and was only available in silver.

Issues

  • The SL45's firmware had many bugs, for example randomly freezing and crashing. A common complaint was that SMS messages were slow to load.
  • The serial data connection of the SL45 was slow for loading MP3 files on the phone. This can be worked around by using a MMC card reader on the PC.

Variants

  • 6688: Asian variant.
  • SL42: Cheaper version released in 2001, with reduced sales package contents - 16 MB card, no SyncStation, or headphones. This means the MP3 player cannot be used without buying the headphones separately.
  • SL42e: Orange branded variant of the SL42.[3]
  • SL45i: Released in 2001, adds Java J2ME support, also being the first ever phone with this feature. The other variants can be upgraded to a SL45i by flashing firmware, as they are all identical hardware wise. The SL45i has a higher capacity battery.

Related phones

Specs

Basics

SL45
HW Platform/ChipsetInfineon E-GOLD+ V2.x PMB6850 (13 MHz C166CBC, 26 MHz when running Java apps)
SW Platform/OSSiemens proprietary
Display 101 x 80, monochrome
Sub-displayNo
Physical display size1.5"
LED IndicatorNo
SensorsNo
Flash memory?
RAM?
Memory card slotMMC, officially up to 64 MB
SL45/SL45i: 32 MB included
SL42: 16 MB included
Phonebook capacity500
Charging and data connectorSiemens Lumberg connector

Connectivity

SL45
Operating modesGSM 900/1800
DataCSD
Push-to-talkNo
WLANNo
SIM sizeMini SIM
IrDAYes
BluetoothNo
PC LinkYes, included CD software
Data tetheringYes

Input

SL45
Input methodsT9, predictive text (dictionary stored on MMC)
Touch screenNo
Soft keysTwo softkeys, 4-way d-pad, call, end
Side keysLeft: Volume up/down, dictaphone and MP3 player shortcuts

Media

SL45
Rear cameraNo
Front cameraNo
Supported image formatsWBMP, GIF
Supported sound formatsSRT, MID, MP3
Supported video formatsNone
Speaker configurationEar speaker
Line outSiemens Lumberg connector
SynthesizerSingle chord polyphony in square-wave synth
FM radioNo
ExtrasRingtone composer, dictaphone

Messaging

SL45
SMSYes
EMSNo
MMSNo
IMNo
EmailNo

Software

SL45
JavaMIDP 1.0 • SL45i firmware only
BREWNo
MophunNo
Flash LiteNo
MediaTek MRENo

Accessories

Batteries

References

See also