SG Ports Services and Protocols - Port 447 tcp/udp information, official and unofficial assignments, known security risks, trojans and applications use.

SG Ports Services and Protocols - Port 449 tcp/udp information, official and unofficial assignments, known security risks, trojans and applications use.

TCP port 445 is used for direct TCP/IP MS Networking access without the need for a NetBIOS layer. The SMB (Server Message Block) protocol is used for file sharing in Windows NT/2K/XP and later. In Windows NT it ran on top of NetBT (NetBIOS …

VoIP STUN (Session Traversal Utilities for NAT) port. It operates on port 3478 TCP/UDP, may also use port 19302 UDP. It is usually supported by newer VoIP devices.

SG Ports Services and Protocols - Port 4443 tcp/udp information, official and unofficial assignments, known security risks, trojans and applications use.

CPE WAN Management Protocol Technical Report 069 uses port 7547 (TCP/UDP). Port associated with TR-069 - application layer protocol for remote management of end-user devices. It is a bidirectional SOAP/HTTP-based protocol that provides communication between CPE devices and auto-configuration servers (ACS).

In general, each revision of Bluetooth improves upon power consumption, data rate, security, pairing reliability, ease and speed, etc. If given an option, always choose the device with the highest Bluetooth version.

Noise (dBm) in communications is a combination of unwanted interfering signal sources, such as crosstalk, radio frequency interference, distortion, etc. Signal-to-noise ratio (SNR) is defined as the power ratio between a signal (meaningful information) and the background noise (unwanted signal): SNR = signal / noise 6dB or below SNR is bad, you will experience no sync, or …