RTP300 won't work with PBX

Posts: 8 · Posted: Wed Nov 16, 2005 4:28 pm Post subject: RTP300 won't work with PBX

I have a PBX that I've used successfully with AT&T VoIP service using a LInksys RT31P2 router. I didn't like AT&T for a couple of reasons having to do with the company and the features of the service, so I dropped it and ordered four lines from Vonage. Vonage shipped me two Linksys RTP300 routers, which work well for me overall but have one fatal flow. They apprently refuse to send the CPC disconnect signal when the remote party disconnects. I've had Vonage experiement with different values for the CPC duration (from 200 miliseconds all the way up to 2000), but no matter what I do, my PBX never knows when a remote party hangs up and so never drops the line. I called Linksys and they said to ask Vonage if they have a firmware update. Vonage apparently has nothing further to suggest. If I cant' make this work, i have to either drop Vonage or replace the RTP300's with RT31P2's or something else that will work. Anyone have any experience or ideas with this problem and the RTP300?

Posts: 4750 · Vonage Forum **MVM** Joined: Aug 30, 2005 Posts: 4750

Just to be sure, what firmware is running on the RTP300's?

Posts: 8 · Posted: Thu Nov 17, 2005 12:45 pm Post subject:

Steve48 wrote:

Just to be sure, what firmware is running on the RTP300's?

1.00.55 on both

Posts: 79 · Vonage Forum Senior Joined: Dec 28, 2004 Posts: 79

You could always "virtually trunk" your PBX with a 4 port gateway and an open SIP proxy VoIP service....

I never liked getting virtual dialtone using independant routers attached to ports as you run into problems like the one you face... among others..

Don

Posts: 8 · Posted: Fri Nov 18, 2005 9:03 am Post subject:

[quote="veep"]You could always "virtually trunk" your PBX with a 4 port gateway and an open SIP proxy VoIP service....

Yeah. My ultimate solution will be an Asterisk PBX and whatever is the appropriate service provider at the time, but that's not a project I'll have time to tackle in the near future. The frustrating thing is that I know from experience that my present PBX works find with other routers, so I need to have Vonage replace these or just forget about using Vonage. I like the Vonage service in every other respect, so I wish it would work out for me.

Posts: 79 · Vonage Forum Senior Joined: Dec 28, 2004 Posts: 79

Thats cool...

Asterisk is nice, but an entirely different platform. For those looking at that route I would recommend www.pbxnsip.com over the Asterisk anyday.

But for your solution, the gateway is sensible because it consolodates the application on one device instead of 4 independant routers. It wouldn't be much a of project. You would get an Audiocodes MP104 gateway preconfigured with a VoIP service and connect it too the bandwith and pbx at your prem. With some quick mapping and testing, you could have turn up of the virtual trunks within minutes.

Its usually done before or after core business hours for no downtime.. Pretty straightforward.

good luck with your project. It sounds like you are oh so close.

Don

Posts: 57 · Full Forum Member Joined: Feb 23, 2005 Posts: 57

tfelice wrote:

I have a PBX that I've used successfully with AT&T VoIP service using a LInksys RT31P2 router. I didn't like AT&T for a couple of reasons having to do with the company and the features of the service, so I dropped it and ordered four lines from Vonage. Vonage shipped me two Linksys RTP300 routers, which work well for me overall but have one fatal flow. They apprently refuse to send the CPC disconnect signal when the remote party disconnects. I've had Vonage experiement with different values for the CPC duration (from 200 miliseconds all the way up to 2000), but no matter what I do, my PBX never knows when a remote party hangs up and so never drops the line. I called Linksys and they said to ask Vonage if they have a firmware update. Vonage apparently has nothing further to suggest. If I cant' make this work, i have to either drop Vonage or replace the RTP300's with RT31P2's or something else that will work. Anyone have any experience or ideas with this problem and the RTP300?

There are two big questions here. One, why are the RTP300s not disconnecting, which obviously is one problem.

The second question is what type of PBX are you using? Cisco? Mitel? Avaya? Dependent upon the type of system & complexity, you might have some additional options to disconnect.

Posts: 8 · Posted: Fri Nov 18, 2005 4:08 pm Post subject: Re: RTP300 won't work with PBX

chupper wrote:

There are two big questions here. One, why are the RTP300s not disconnecting, which obviously is one problem.

The second question is what type of PBX are you using? Cisco? Mitel? Avaya? Dependent upon the type of system & complexity, you might have some additional options to disconnect.

The PBX is a NexPath NTS16. I didn't think that was all that relevant because I know from experience that other routers, including the Linksys RT31P2, will work fine with this PBX. Since the whole point of ditching my old telco for Vonage service in the first place was to take advantage of a cost-effective solution for my business telephone needs, I'm not inclined to spend $1000 for a 4-port gateway to make it work. I know that worst case I can go out and buy two Vonage-ready RT31P2 routers for less than $150 and everything will work just fine. I just hate to go to that trouble and expense when the darn routers Vonage sent me should work.

Posts: 9 · New Forum Member Joined: Mar 14, 2003 Posts: 9

tfelice wrote:

I have a PBX that I've used successfully with AT&T VoIP service using a LInksys RT31P2 router. I didn't like AT&T for a couple of reasons having to do with the company and the features of the service, so I dropped it and ordered four lines from Vonage. Vonage shipped me two Linksys RTP300 routers, which work well for me overall but have one fatal flow. They apprently refuse to send the CPC disconnect signal when the remote party disconnects. I've had Vonage experiement with different values for the CPC duration (from 200 miliseconds all the way up to 2000), but no matter what I do, my PBX never knows when a remote party hangs up and so never drops the line. I called Linksys and they said to ask Vonage if they have a firmware update. Vonage apparently has nothing further to suggest. If I cant' make this work, i have to either drop Vonage or replace the RTP300's with RT31P2's or something else that will work. Anyone have any experience or ideas with this problem and the RTP300?

I use 4 Motorola VT1005 boxes with my PBX and the CPC disconnect works perfectly. My old Cisco ATA used to not work, then Vonage fixed it with an update. After a while the ATA bit it and I made sure I did not let Vonage ship me a RTP300 as a replacement, they let me buy a VT1005 from Circuit City and then they credited my account. The PBX still works perfectly..

Dan

Posts: 25 · Vonage Forum Junior Joined: Mar 25, 2004 Posts: 25

tfelice wrote:

Yeah. My ultimate solution will be an Asterisk PBX and whatever is the appropriate service provider at the time, but that's not a project I'll have time to tackle in the near future.

When that time does come you'll want to look at iTEL-ip www.itel-ip.com.

Because your Asterisk uses T.38 for faxing, you'll need them to suppor that. To my knowledge they are the only SIp trunking provider that can support T.38. Plus they will guarentee QoS which will change your world for voice quality.

Besides I believe they are based on Ohio too so you'll be able to keep your $$$ locally. Very Happy

Good Luck.