Hi,
Were setting up a Panasonic PBX on our network. Phones will connect to it locally and via the internet (Remote Phones). The phone system installer said we needed to disable SIP ALG in the router.
I've found that we could disable SIP here: IP > Firewall > Service Ports.
In Service Ports, there's also : (Quotes are from Wikipedia)
h323: "Within the context of H.323, an IP-based PBX might be a gatekeeper or other call control element which provides service to telephones or videophones. Such a device may provide or facilitate both basic services and supplementary services, such as call transfer, park, pick-up, and hold."
dccp: "DCCP is useful for applications with timing constraints on the delivery of data. Such applications include streaming media, multiplayer online games and Internet telephony"
sctp : "The designers of SCTP originally intended it for the transport of telephony"
To prevent troubles, I wonder, should we also disable h323, dccp and sctp (in addition to sip)? Or will it cause other troubles with the other usages the users do with the network?