Method and arrangement for signalling in a wireless IP multimedia network and a wireless IP multimedia network terminal device

摘要

The technology described relates to telecommunication networks and more specifically to a method and an arrangement for signalling in a wireless IP multimedia network and to a wireless IP multimedia network terminal device and permits 3GPP Core Network IP Multimedia Subsystems and all associated products including mobile terminals, Media Gateway, Media Gateway Control Function, etc. to support DTMF tones.