Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations IamaSherpa on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Creative VOIP Blaster over LAN

Status
Not open for further replies.

Rikster61201

IS-IT--Management
Mar 20, 2002
1
US
My Boss has purchased a couple of Creative VOIP Blasters without reading fine print on the box(LAN & Firewall are not supported) My question is does anyone know what ports the ITU-T H.323 V2 Voice-over-IP protocol uses so that I might configure the router on our LAN to allow this device to work? Or if not is there a port sniffer that might allow me to figure out what port the gadget is trying to use?
Any help with this would be greatly appreciated.
Thanks
Rick
 
This is the answer you don't really want to hear. The best way to accomplish what you wantis to open all ports on the address of the Blaster. H.323 uses a wide array of ports which are dynamically allocated making firewall configuration almost impossible. By the time you get all the ports open, you might as well have opened all of them and manually closed a few instead. That may actually be the best approach. Try opening all and then wait to see what ports get hit (firewall log) from the ouitside as attempted attacks. Then close those ports and see what happens.
 
Alternatively, you can use fobbit. A software package that allows the device to work over a lan. ( You can even set up a phonebook server to map keypresses on the phone to other users ip adresses. (And you won't have to open many ports!!)

Enjoy
 
Ah ! you should use a port scanner that will reveal all I am in the middle of it myself.
I have just installed a VoIP on my colleagues server and it works great on the company LAN but you can't get in or out. However he's about to innaugurate his London office and his Bosnia office as a WAN. Now that should work.
Back to the problem you're faced with, I noticed that the VoIP was binded to the LAN card which of course sits behind the firewall so perhaps you should uninstall the VoIP software, disable the LAN card install the VoIP software again - ensuring binding to the LAN does not occur like preferably your modem/adaptor whatever
Try it out - if all is well THEN enable LAN and try VoIP from server fixed position
To work through the firewall may be a problem as the port scanner showed two listen and two send ports which I may recall were variable, anyway PORT SCANNER software should help
It may be you will note a specific range that is used, as forv CREATIVE, don't bother they usually ask what colour is it !!
all the best
Dave
 
Rick ,

I m interested in getting a set(2) of VoIP blaster one for me and one for my mom in India . I m looking to buy one looks like Creative Labs is not producing this anymore. Let me know if you have any lying around in your work/home which you may not be using , i will buy from you. I look fwd to your reply msgh@hotmail.com

Syed
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top