Port 1300H.323 Secure Call Control Signalling

H.323 secure call-control signalling assigned to TCP and UDP port 1300.

transport: tcp · udp
in transit: encrypted
assignment: official
risk: 1/10
lookups: 0

also known as h323hostcallsc

Technical Details

what runs on :1300

no technical write-up for :1300 yet

the handshake, the implementations you meet in the wild, the flags that matter. we have the registry entry — the detail comes from the engineers who run it.

add technical details

Security Information

exposure of :1300

risk score

1/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

voice and chat averages 3.6 across 137 ports — this one sits 2.6 below.

in transit

encrypted

payloads are protected on the wire

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

no security notes recorded for :1300 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :1300
service: H.323 Secure Call Control Signalling
transport: TCPUDP
encryption: tls / encrypted
assignment: iana registered
risk: 1/10safe
category: Voice and Chat
usage: Port 1300 is assigned for H.323 secure call-control signalling over TCP and UDP. The assignment is held by ITU-T; specific implementations and deployment patterns are not documented in the registry.
lookups: 0rank 994
added: 2026-09-01
updated: 2026-09-01
references: IANA service name registry — port 1300

Something wrong?

This record is maintained by the engineers who use port 1300. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-01.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

all 137 in voice and chat →

the 8 most looked-up other ports in voice and chat — 137 ports carry that label.

port	service	proto	category	risk	views
:9090	Openfire Admin Console	TCP	Web Services	caution	34.2k
:1513	Garena Gaming	TCPUDP	Gaming	caution	33.1k
:9091	Openfire Admin Console (SSL)	TCPtls	Web Services	caution	28.3k
:2031	Mobrien Chat	TCPUDP	Web Services	caution	27.7k
:1720	H.323 Signaling	TCP	Network Services	caution	26.5k
:6005	Camfrog Chat	TCP	Voice and Chat	caution	25.2k
:3001	Miralix Phone Monitor	TCP	Network Services	caution	21.7k
:9009	Pichat Server	TCPUDP	Network Services	caution	19.7k

risk mix of the 8 listed

caution100%

1 of 8 encrypted

Port :1300H.323 Secure Call Control Signalling

Technical Details

Security Information

Related Ports

Port 1300H.323 Secure Call Control Signalling