TS Latest: Rel-19 Core Network Multi-Gen

TS 48.103 – A Interface User Plane Transport Protocols

3GPP TS 48.103 is the 3GPP Technical Specification for A Interface User Plane Transport Protocols. It is published in 12 releases (Rel-8 to Rel-19); the latest version is 19.0.0 in Rel-19.

Specifies User Plane transport protocols for A interface, including AoIP (RTP/UDP/IP) and AoTDM, with codec support and local switching.

Read TS 48.103 →

Document type

Technical Specification

Latest release

Rel-19

Latest version

19.0.0

Series

48 series

Releases and versions of TS 48.103

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	11.0.0	Read · Download (3GPP)
Rel-10	10.0.0	Read · Download (3GPP)
Rel-9	9.1.0	Read · Download (3GPP)
Rel-8	8.3.0	Read · Download (3GPP)

Scope of TS 48.103

Category: Core Network (A Interface). Technology generation: Multi-Gen. Network layer: CoreNetwork.

Who should read this specification?

Network operators
Device manufacturers
Researchers and academics

Implementation notes

Complexity level: Advanced. Implementation difficulty: Medium.

Key technologies

GSMUMTSIPRTPUDPTDM

Specifications referenced by TS 48.103

TS 48.020 PLMN Rate Adaptation Functions
TS 48.008 BSS-MSC Interface Layer 3 Procedures
TR 21.905 3GPP Terminology and Definitions
TS 26.102 Mapping of AMR and other codecs to interfaces
TS 23.284 Local Call Local Switch Stage 2
TS 29.414 Nb Interface Bearer Transport & Control Protocols
29.814 Feasibility Study on Bandwidth Savings at Nb Interface with IP transport

Specifications that reference TS 48.103

TS 29.232 Mc Interface Protocol Profile
TS 26.102 Mapping of AMR and other codecs to interfaces
TS 29.292 IMS Centralized Services (ICS) Interworking

Other specifications in the 48 series

TS 48.058 BSC-BTS interface layer 3 specification
TS 48.060 Inband Control of Remote Transcoder/Rate Adaptors
TS 48.061 BTS-TRAU Protocol for HR Speech/Data
TS 48.071 SMLC-BSS Interface Layer 3 Coding

Related glossary terms

CN SIP-I INFO L1 ITU-T Clause UL DL RTCP HC RTCP CSRC

Frequently asked questions

What is 3GPP TS 48.103?

3GPP TS 48.103 is the 3GPP Technical Specification for A Interface User Plane Transport Protocols. Specifies User Plane transport protocols for A interface, including AoIP (RTP/UDP/IP) and AoTDM, with codec support and local switching.

Which 3GPP releases include TS 48.103?

TS 48.103 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 48.103 belong to?

TS 48.103 belongs to the Core Network (A Interface) category of 3GPP specifications. It applies to Multi-Gen networks.

View the full specification with interactive table of contents, version history, and AI analysis.

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