TANDBERG D13192 manual Layer 4 ports used by the system, Outgoing H.323 call, Incoming H.323 call

Technical Description of TANDBERG Gateway with software version G2

4.6.6Layer 4 ports used by the system

The following TCP and UDP ports are relevant for the TANDBERG Gateway.

Function	Port	Type	Direction
Gatekeeper RAS	1719	UDP	⇔
Gatekeeper Discovery	224.0.1.41:1718	UDP	⇔
Q.931 Call Setup	1720	TCP*	⇔
H.245/Q.931	Range 5555—5587	TCP	⇔
Video	Range 2326—2837	UDP	⇔
Audio	Range 2326—2837	UDP	⇔
Data/FECC	Range 2326—2837	UDP	⇔
FTP (control)	21	TCP*	⇔
Telnet	23	TCP*	⇔
HTTP	80	TCP*	⇔
HTTPS	443	TCP	⇔
NTP	123	UDP*	⇐ (incoming to
			TANDBERG Gateway)
SNMP (Queries)	161	UDP*	⇔
SNMP (Traps)	962	UDP	⇒ (outgoing from
			TANDBERG Gateway)
Netlog	963	TCP	⇔
FTP (data)	1026	TCP	⇔

Outgoing H.323 call:

First call uses 5555 for outgoing Q.931 and 5556 for H.245, next uses 5557 for Q.931 and 5558 for H.245, etc.

Please see the TANDBERG and IP document (D12434) for more details.

Incoming H.323 call:

All incoming calls use 1720 for Q.931 messaging. First call uses 5555 for H.245, second 5556 etc.

Please see the TANDBERG and IP document (D12434) for more details.

(*) Listening sockets

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