Comments on: Next VOIP Project: SIP-GSM Gateway

By: mjgraves

mjgraves — Thu, 06 Mar 2008 22:48:25 +0000

The hardware arrived a few days ago. So I hope to get underway with the project this coming weekend. I’ll post progress reports here on my blog.

By: Voip Carriers

Voip Carriers — Thu, 06 Mar 2008 21:46:41 +0000

Voip Carriers

It is a quite interesting post but quite difficult to understand for me -

By: mjgraves

mjgraves — Thu, 21 Feb 2008 22:56:44 +0000

The hardware is on its way now! No doubt there’s a lot to be learned along the way. A solid 911 and 411 solution may be at hand. Ideally I’d like a 311 solution as well, but cellular carriers don’t seem to provide this.

I saw the GSM>analog type interfaces, and they are about half the cost of similar GSM>SIP interfaces. However, staying digital seems a lot more attractive. I never want to fight with FXO tuning again.

By: michael

michael — Thu, 21 Feb 2008 18:04:17 +0000

Looking forward to your experiences with the GSM gateway. I was considering something similar using chan_mobile and a bluetooth phone, but the gateway you ordered will no doubt be a more robust solution. I’m assuming that all outgoing calls through the gateway will end up with the mobile service number as outgoing caller id. Do you know otherwise at this point? That may be a big negative for some.

By: Josh Richards

Josh Richards — Thu, 21 Feb 2008 16:44:27 +0000

“I’d like to provide my own 911 and 411 service by bridging calls over to my cellular account.”

Oohh….I see these on eBay all the time (FXO ones anyhow). I had kicked around the idea of getting one for the free mobile to mobile minutes. I wasn’t convinced to do it. Your 911 idea was an advantage I hadn’t thought of though. All the location identifying stuff is already solved with cellular. Nifty.

Of course there’s the problem of how do you actually test it?

-jr