Patents by Inventor Mika Pykälistö

Mika Pykälistö has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6201861
    Abstract: In a method according to one intelligent network recommendation, when B subscriber has hung up the phone, a Service Switching Point (SSP) sends a message to a Service Control Point (SCP) about the hanging up. The SCP responds with a request to disconnect the B leg. A separate request increases unnecessary signalling. In another known method, after B subscriber has hung up, a timer is started and the B leg is disconnected only after a set period of time. This waiting time is annoying to A subscriber, especially when there are many calls to be made. In the method according to the invention, A subscriber can make a continuing call without waiting or without causing unnecessary signalling so that after a Service Control Function (SCF) receives information about the break off of the call, it sends a message to a Service Switching Function (SSF) containing a request to collect the dialling by A subscriber relating to a new B subscriber.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: March 13, 2001
    Assignee: Nokia Telecommunications Oy
    Inventor: Mika Pykälistö