Exfo Oy

Timo Ainali

Jorma Ikäheimo

Taisto Niiranen

Sakari Yrttiaho

Kamal Bhambhani

Tuure Mäkelä

Method and arrangement for detecting subscriber identity. The method includes: capturing in a fake base station at least one wireless message transmitted from a mobile subscriber apparatus interoperable with a mobile phone system; detecting an encrypted subscriber identity from the at least one captured wireless message; and retrieving an unencrypted subscriber identity from an entity inside an infrastructure of the mobile phone system based on the encrypted subscriber identity.

Method and arrangement for detecting subscriber identity

This document discloses a solution for outputting a message sequence chart in a computer apparatus. Messages transferred in a communication network are acquired, wherein the messages are logically divided into control plane messages and data plane messages and each message is associated with its transmission direction. Display of the control plane messages is caused on a display screen in the message sequence chart and in a form where each control plane message is displayed together with a unidirectional indicator indicating the transmission direction of the control plane message. Display of the data plane messages is caused in the message sequence chart in a compressed form with a single multidirectional indicator representing a plurality of data plane messages and indicating the transmission directions of the plurality of data plane messages.

Growing community of inventors

Oulu, Finland

Timo Ainali