Meridian and VOIP

[ttmk101]

Hi
I’ve been trying to connect back to work where we have a meridian switch with an ip phone (Nortel i2004).
This is done over a DSL line; I’ve placed the phone behind a linksys befw11s4 with DHCP and used port forwarding. Because the speed is only 384, I tried this early in the morning. With that I could establish and leave a voice message at work. Around 7 I can hear the person at the office only. (One way conversation) I put a switch between the modem and the router and still got the same results.
Would doing a vpn help.

 

[brewerdude]

Your connection back to work is completely open? Yikes. I would recommend a VPN tunnel with a softphone. Also check the settings of the Zone the phone is in. You'll need to tweak between having it set to G.711 (64K) and G.729AB (8K).

 

[johnpoole]

the above post hit the nail on the head on that one, also test the connection speed of your dsl, even with 711 you should not be bumping into your bandwidth, are you using the dsl for other apps at the same time? we use g.714 in house with great results, dsl should give you clean two-way voice without clipping

john poole
bellsouth business
columbia,sc

 

[StanleySteamer]

To use port forwarding I think you will need a static ip address.
Which ports are you forwarding?
My 12004 works with 4100, 5100 and 5200 thru 5246.
One of these is for the receive voice. I think 4100.

Steamer

 

[ttmk101]

Well is just testing at the moment. We tried to use a wpg54g at the office and befv41 on the home end. Which after checking around the web found this is junk. But not being able to get that to work, I just forged ahead to get things moving.
My next try will be with something else. I do have the softphone setup at the same location and it work fine.
I found a location on the web for ports and put them all in figuring that I could whittle them down to only what would be needed. I will check, but I'm fairly sure those were in that group.
I tried it both ways static and dhcp behind the router and in front with the same results.
Thanks for the feedback. I will check out the suggestion and give it another shot.

 

[johnpoole]

are you using the router for a dhcp server? if not the dhcp request is a broadcast that the router will not pass, without a work around. i would recogmend static with a static route in your pc, that may be why the soft phone works clean, still don't sound like a bandwidth concern

john poole
bellsouth business
columbia,sc

 

[ttmk101]

The static is what I used when I placed it between the cable modem and the router through a switch, using an address assigned by the Admin., and behind the router at home I also did a static config of a LAN.
the SF still worked either way.

 

[ArchibaldJCox]

I would definitely find a site with a speed test for UPLOAD speed, especially if you can HEAR only but they can't hear you. A lot of ISP's have capped uploads to discourage people from running servers (FTP, P2P etc.) from their home computers.

Just a thought.

Arch.

 

[ttmk101]

I will check that also. I do have access to toast and dslreports for that.

 

[I2007]

If you telnet the ITG or SS leader, login, and send the command ifShow on the CLI many times, and loose connection with the leader. Well I think you have a NAT traversal problem.