TS 43.055 – Dual Transfer Mode (DTM) for GSM/GPRS
3GPP TS 43.055 is the 3GPP Technical Specification for Dual Transfer Mode (DTM) for GSM/GPRS. It is published in 12 releases (Rel-8 to Rel-19); the latest version is 19.0.0 in Rel-19.
Enables simultaneous circuit-switched and packet-switched connections in GSM/GPRS networks without requiring dual-frequency operation.
Releases and versions of TS 43.055
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.0.0 | Read · Download (3GPP) |
| Rel-18 | 18.0.0 | Read · Download (3GPP) |
| Rel-17 | 17.0.0 | Read · Download (3GPP) |
| Rel-16 | 16.0.0 | Read · Download (3GPP) |
| Rel-15 | 15.0.0 | Read · Download (3GPP) |
| Rel-14 | 14.0.0 | Read · Download (3GPP) |
| Rel-13 | 13.0.0 | Read · Download (3GPP) |
| Rel-12 | 12.0.0 | Read · Download (3GPP) |
| Rel-11 | 11.1.0 | Read · Download (3GPP) |
| Rel-10 | 10.0.0 | Read · Download (3GPP) |
| Rel-9 | 9.0.0 | Read · Download (3GPP) |
| Rel-8 | 8.1.0 | Read · Download (3GPP) |
Scope of TS 43.055
Category: Radio Access (Dual Transfer Mode). Technology generation: 2G. Network layer: RAN.
Who should read this specification?
- Network operators
- Device manufacturers
- Researchers and academics
Implementation notes
Complexity level: Advanced. Implementation difficulty: Medium.
Key technologies
Specifications referenced by TS 43.055
- TS 23.121 UMTS/GSM Evolution Technical Spec
- TS 24.007 Layer 3 Architecture for GSM/UMTS/EPS/5GS
- TS 24.008 NAS Call, Mobility and Session Procedures
- TS 43.129 PS Handover in GERAN A/Gb and GAN Modes
- TS 23.009 Handover Procedures in PLMNs
- TS 25.331 RRC Protocol for UE-UTRAN Radio Interface
- TS 25.413 Radio Access Network Application Part (RANAP)
- TS 48.008 BSS-MSC Interface Layer 3 Procedures
- TS 48.018 BSS-SGSN Interface for GPRS Control
- TS 23.216 SRVCC Architecture Enhancements
- TR 21.905 3GPP Terminology and Definitions
- TS 23.251 Network Sharing Stage 2 Specification
Specifications that reference TS 43.055
Other specifications in the 43 series
- TS 43.045 Group 3 Fax Service in A/Gb Mode PLMN
- TS 43.050 GSM Transmission Planning for Speech Services
- TS 43.051 GERAN Stage 2 Service Description
- TS 43.052 GSM Cordless Telephony System (CTS) Radio Interface
- TS 43.058 Handsfree MS Transmission Quality Guidelines
- TS 43.059 GERAN LCS Stage 2 Specification
- TS 43.064 GPRS Radio Interface Lower-Layer Functions
- TS 43.068 Voice Group Call Service (VGCS) Stage 2
Related glossary terms
Frequently asked questions
What is 3GPP TS 43.055?
3GPP TS 43.055 is the 3GPP Technical Specification for Dual Transfer Mode (DTM) for GSM/GPRS. Enables simultaneous circuit-switched and packet-switched connections in GSM/GPRS networks without requiring dual-frequency operation.
Which 3GPP releases include TS 43.055?
TS 43.055 is published in 12 releases, from Rel-8 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 43.055 belong to?
TS 43.055 belongs to the Radio Access (Dual Transfer Mode) category of 3GPP specifications. It applies to 2G networks.
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