- Use strong credentials and TLS for signalling.
- Rate-limit registrations to stop extension scanning and toll fraud.
- Alert on unexpected chat protocols leaving servers (possible command and control).
Port 1071: BSQUARE-VOIP
Port 1071 is assigned by IANA to bsquare-voip (BSQUARE-VOIP).
1071
How bsquare-voip works
Voice & chatPort 1071 sets up the call (who calls whom), then the voice travels as a stream of audio packets.
- Transport
- TCP · UDP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
- Voice & chat
Is port 1071 dangerous?
We have no specific security note for port 1071. Its risk depends on the program actually listening on it. General advice for voice & chat services:
IANA registry entries for port 1071
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| bsquare-voip | 1071 | TCP, UDP | BSQUARE-VOIP | - | - |
// source: IANA service name and port number registry
Which program uses port 1071, and is it reachable?
Linux
sudo ss -ltnup 'sport = :1071' # process listening on 1071
sudo lsof -nP -i :1071macOS
sudo lsof -nP -i :1071
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1071 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 1071 netstat -ano | findstr :1071
From another machine
nmap -p 1071 -sV <host> sudo nmap -sU -p 1071 <host> nc -zv <host> 1071
Block it in the firewall
sudo ufw deny 1071/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 1071" -Direction Inbound -LocalPort 1071 -Protocol TCP -Action Block # Windows
What is port 1071 used for?
Port 1071 is assigned by IANA to bsquare-voip (BSQUARE-VOIP).
Is port 1071 TCP or UDP?
Port 1071 is registered for TCP and UDP.
Is it safe to open port 1071?
It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Use strong credentials and TLS for signalling.
How do I check if port 1071 is open?
On Linux run "ss -ltnup 'sport = :1071'", on macOS "lsof -nP -i :1071", and on Windows "netstat -ano | findstr :1071" to see the local process. From another machine, "nmap -p 1071 <host>" shows whether it is reachable.