Texas Instruments Calypso-based phones
E898102
Texas Instruments Calypso-based phones are mobile handsets built around TI’s Calypso GSM chipset, commonly used in early 2G devices and favored by open-source baseband projects for experimentation and research.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
GSM handset platform
ⓘ
mobile phone family ⓘ |
| basedOn | Texas Instruments Calypso chipset NERFINISHED ⓘ |
| commonVendors |
BenQ
NERFINISHED
ⓘ
Compal NERFINISHED ⓘ Motorola NERFINISHED ⓘ other OEM handset manufacturers ⓘ |
| community | Osmocom community NERFINISHED ⓘ |
| communityUse | open hardware-like experimentation on closed phones ⓘ |
| designedFor | 2G-era mobile networks ⓘ |
| era |
early 2000s
ⓘ
mid 2000s ⓘ |
| favoredBy | open-source baseband projects ⓘ |
| favoredFor |
experimentation
ⓘ
research ⓘ |
| featureLevel |
entry-level mobile phones
ⓘ
feature phones without smartphone OS ⓘ |
| hardwareCharacteristic |
JTAG support
ⓘ
accessible debug interfaces ⓘ separate baseband and application processor ⓘ serial UART interface ⓘ |
| manufacturerOfChipset | Texas Instruments NERFINISHED ⓘ |
| notableModelFamily |
Compal-based low-end GSM phones
ⓘ
Motorola C1xx series NERFINISHED ⓘ |
| notableProject | OsmocomBB NERFINISHED ⓘ |
| powerManagement | integrated power management IC from TI ⓘ |
| radioTechnology |
GSM 1800
ⓘ
GSM 1900 ⓘ GSM 900 ⓘ |
| reasonForPopularityInResearch |
availability of low-cost second-hand devices
ⓘ
relatively simple 2G-only architecture ⓘ well-documented Calypso chipset behavior by community ⓘ |
| softwareCharacteristic |
proprietary baseband firmware
ⓘ
replaceable baseband firmware in some models ⓘ |
| supportsNetwork | 2G GSM ⓘ |
| supportsStandard | GSM ⓘ |
| targetMarket |
emerging markets
ⓘ
low-cost GSM markets ⓘ |
| typicalFormFactor |
candybar phone
ⓘ
feature phone ⓘ |
| typicalOS | proprietary RTOS on baseband GENERATED ⓘ |
| typicalUse |
SMS messaging
ⓘ
voice calls ⓘ |
| usedFor |
GSM protocol experimentation
ⓘ
baseband reverse engineering ⓘ security research on cellular networks ⓘ |
| usedIn | OsmocomBB project NERFINISHED ⓘ |
| uses | Texas Instruments Calypso GSM baseband ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.