PROVIDING AN IMS VOICE SESSION VIA A PACKET SWITCH NETWORK AND AN EMERGENCY VOICE SESSION VIA A CIRCUIT SWITCH NETWORK
- Application ID: EP12708662
- Status: █ The patent has been granted
This EP application has the IPC class H04 (ELECTRIC COMMUNICATION TECHNIQUE). Ericsson AB is specialized in H04. Algemeen Octrooi- en Merkenbureau BV is specialised in H04 (ELECTRIC COMMUNICATION TECHNIQUE). Here you find a list of all patent agent firms which are specialized in this IPC class. For a similar patent, they might be a good choice.