The present invention relates to resource reservation for establishing end-to-end
quality of service in a digital communication system, without resource reservation
signalling over the access bearer. The solution, according to the invention is
to remove the resource reservation protocol signalling on the IP level, over the
access interface, e.g. the expensive and narrow radio channel, and introduce an
resource reservation protocol proxy in the network. The introduction of the proxy
functionality still supports the possibility, or meets the requirement, to reserve
resources end to end.