- 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 2861: Dialpad Voice 2
Port 2861 is assigned by IANA to dialpad-voice2 (Dialpad Voice 2).
2861
How dialpad-voice2 works
Voice & chatPort 2861 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 2861 dangerous?
We have no specific security note for port 2861. Its risk depends on the program actually listening on it. General advice for voice & chat services:
IANA registry entries for port 2861
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| dialpad-voice2 | 2861 | TCP, UDP | Dialpad Voice 2 | - | - |
// source: IANA service name and port number registry
Which program uses port 2861, and is it reachable?
Linux
sudo ss -ltnup 'sport = :2861' # process listening on 2861
sudo lsof -nP -i :2861macOS
sudo lsof -nP -i :2861
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2861 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 2861 netstat -ano | findstr :2861
From another machine
nmap -p 2861 -sV <host> sudo nmap -sU -p 2861 <host> nc -zv <host> 2861
Block it in the firewall
sudo ufw deny 2861/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 2861" -Direction Inbound -LocalPort 2861 -Protocol TCP -Action Block # Windows
What is port 2861 used for?
Port 2861 is assigned by IANA to dialpad-voice2 (Dialpad Voice 2).
Is port 2861 TCP or UDP?
Port 2861 is registered for TCP and UDP.
Is it safe to open port 2861?
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 2861 is open?
On Linux run "ss -ltnup 'sport = :2861'", on macOS "lsof -nP -i :2861", and on Windows "netstat -ano | findstr :2861" to see the local process. From another machine, "nmap -p 2861 <host>" shows whether it is reachable.