TETRA GSM Interworking

• Production and/or adoption of standards to provide improved interworking and roaming between TETRA and public mobile networks such as GSM, GPRS and UMTS™.
• Evolution of the TETRA SIM, with the aim of convergence with USIM, to meet the needs for TETRA specific services whilst gaining the benefits of interworking and roaming with public mobile networks such as GSM, GPRS and UMTS™.

TETRA Vendors

• Aerial facilities Limited (AFL)
• Avitec
• DAMM
• EADS
• Frequentis
• Motorola
• Niros
• NexGen City
• Nokia (EADS)
• Rohde-Schwarz
• Sepura
• SmartLink Radio Networks
• Siemens
• Simoco
• Tetra Iceland
• Zetron