Howto:What Ports are used for Signaling and Voice Traffic in SIP and H.323?: Difference between revisions
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==Applies To== | ==Applies To== | ||
This information applies to | This information applies to | ||
Revision as of 15:11, 3 September 2012
Applies To
This information applies to
- All innovaphone products
Build V9
More Information
Here is described what TCP and UDP ports are used for signalling and voice traffic on innovaphone devices. This information is applicable for firewalls, network devices, traffic shaping and third party product settings.
Signalling
SIP
| From | To | Protocol | source port | destination port | purpose | comment |
|---|---|---|---|---|---|---|
| Phone/GW(Reg. as EP/GW) | PBX | UDP | dynamic | 5060 | SIP | |
| PBX | Phone/GW(Reg. as EP/GW) | UDP | 5060 | dynamic | SIP | |
| GW(without Reg.) | GW(without Reg.) | UDP | 5060 | 5060 | SIP |
TSIP
| From | To | Protocol | source port | destination port | purpose | comment |
|---|---|---|---|---|---|---|
| Phone/GW(Reg. as EP/GW) | PBX | TCP | dynamic | 5060 | TSIP | |
| PBX | Phone/GW(Reg. as EP/GW) | TCP | dynamic* | dynamic | TSIP | *in contrast to SIP/SIPS request cannot be sent from port 5060/5061 |
| GW(without Reg.) | GW(without Reg.) | TCP | 5060 | 5060 | TSIP |
SIPS
| From | To | Protocol | source port | destination port | purpose | comment |
|---|---|---|---|---|---|---|
| Phone/GW(Reg. as EP/GW) | PBX | TCP | dynamic | 5061 | SIPS | |
| PBX | Phone/GW(Reg. as EP/GW) | TCP | 5061 | dynamic | SIPS | |
| GW(without Reg.) | GW(without Reg.) | TCP | 5061 | 5061 | SIPS |
H.323
| From | To | Protocol | source port | destination port | purpose | comment |
|---|---|---|---|---|---|---|
| Phone/GW(Reg. as EP/GW) | PBX | UDP | dynamic | 1718 | RAS GK discovery | |
| Phone/GW(Reg. as EP/GW) | PBX | UDP | dynamic | 1719 | RAS signalling | |
| Phone/GW(Reg. as EP/GW) | PBX | TCP | dynamic | dynamic* | H.225 signalling | * close to baseport(2048) |
| PBX | Phone | TCP | dynamic | 1720 for Registration/User 1, Registration/User 2-5 dynamic | H.225 | |
| PBX | GW(Reg. as EP/GW) | TCP | dynamic | dynamic | H.225 | |
| GW(without Reg.) | GW(without Reg.) | TCP | dynamic | 1720 | H.225 |
- general port range for dynamic ports: 2048 - 59999
- by default innovaphone devices use H.245 Tunnelling. This means that H.245 signalling is send via the H.225 connection. If this is disabled or if you use a 3rd party H.323 device, additional ports will be used for H.245 messages
- the source H.225 signalling port(TCP) of Gateway Interfaces in Mode Register as Endpoint or Register as Gateway can be configured using the Local Port option in the Gateway Interface menu.
- graphical representation of the H.323 port list
Voice Traffic (RTP)
| From | To | Protocol | source port | destination port | purpose | comment |
|---|---|---|---|---|---|---|
| Phone | Phone/PBX/Gateway | UDP | dynamic** | same as source port | RTP | ** configurable range, default 16384/32767 |
| Phone | Phone/PBX/Gateway | UDP | RTP port + 1 | RTP port + 1 | RTCP | |
| Gateway | PBX/Gateway | UDP | RTP port + 2 | RTP port + 2 | T.38 |
For one voice connection there is only one RTP port in use and one RTCP port. So every call takes 2 ports, that’s any free UDP-ports that are chosen in the RTP port range. The RTP port range is per default from 16384 to 32767. This UDP-RTP port range can be configured under IP4/General/Settings (and is used then for H.323 and SIP calls).
Enter the first UDP - port and the number of ports (Smallest range to be configured is 128):
Related Articels
- Howto:Upgrade_Issues_V5_to_V6#Firewall_and_Network_issues - Information about Ports in V5