Net calls Your Nokia E90 Communicator supports voice calls over Define the net call settings the Internet (net calls). With the net call service (network If your net call service provider offers provisioning for the service), you can make and receive calls over the Internet.
> Call > Send my client by using a Nokia Intellisync Device Manager internet call ID, and press the scroll key to select No. To (OMA DM) server. For more information about enable the call ID to be sent, select Yes.
Contact your net call provider to check the Internet telephony emergency call capability. STUN is a client-server protocol. Nokia E90 Communicator includes a STUN client which will send a request to a STUN server. The server then reports back to the STUN client the public IP address of the NAT router, and the port opened by the NAT to allow incoming traffic back in to the network.