sundance-communications.com/forum Forums TDM Business Telephone Systems Samsung Telephones & Systems Router ports to open for VoIP

We've just installed an MGI-2 on our DCS500, and would like to have it and our MCP behind our SonicWall. What ports do I have to open, and what port-forwarding do I have to do to get IP phones outside the firewall to be able to connect in?

You have to have ports 6100, 1024-4999m and port 5000 open. Let me know if you need anything else!

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Are those TCP or UDP ports? Also, do I foward those ports to the MCP, or just open them up in general to our entire network?

TCP ports and you just open them all up to the whole network.

This has been a bit of a pain in the rear, but if you set the SonicWall to forward port 5000 (TCP)to the MCP2 card, ports 1024 to 4999 and 6100 (TCP and UDP), and ports 30000 through 30030 (RTP and RTCP[? - I just open them up for TCP and UDP]) to the MGI2 card. Port 5000 will give you remote access to the PCMMC, and 1024 through 4999 and 6100 do the call set up and traffic between the system and the instruments, and 30000 through 30030 do traffic for the MGI channels.

You will also have to look at how you have each instrument programmed in the switch, to make sure that you have MGI channels assigned appropriately.

There are other ports that you can open up to access other things on the switch, like SMDR, system alarms and all that, but this should give you what you need.

Opened ports as suggested, with and without any port-forwarding, no luck. The MCP and MGI are currently inside our firewall, have static IPs on our internal network, and are functioning fine. The OfficeServe Link communicates fine with the MCP, and VoIP phones inside our network work great. I am still unable to establish communication from a VoIP phone outside of our firewall.

The ports are set correctly but the problem is more than likley this

1. are the mcp and the mgi assigned static ips? and if so do you have them set for private with public both private and public have got to be set.

2. is the system set to use mgi instead of mcp? this has been a big issue reguarding remote stations. if the itp phone is remote behind another router that router has to be set up to accept communications from both the mcp and the mgi ip addresses. example:the itp phones contacts the mcp card to set up communications, the mcp hands it off to the mgi card and the mgi sends back to the phone "ok lets talk" the remote router sees a different address than the one it sent to so it denies the call and you cant talk.

hope this helps

Ok have you tried taking that IP phone and connecting it inside the firewall? If you are able to access it inside the firewall that will help with the troubleshooting.

I had a problem similar to this once and it was resolved by tediously looking over all the programming I did and making sure everything was correct. I suggest doing that one more time jsut to make sure that everything is right...

MMC 830
MMC 831
MMC 824
MMC 724
MMC 820
MMC 711
MMC 710
MMC 712
MMC 714
MMC 603

I've never set up the ip yet but don't the cards need public static ip addresses?

Yeah the cards on the Samsung system need static IP addresses.

Now, the static IP addresses you have, is it a local static IP? Like a 192.168.x.x number? Or does it have apublic IP? And is that public IP mapped to the private IP address of the cards?