[cisco-voip] Gateway that will answer FXO but will delay cutting in audio path

[Wes Sisk]

it's been a while but maybe take a look at "connection plat opx"
http://www.cisco.com/en/US/docs/ios/12_2/voice/configuration/guide/vvftrunk.html#wp1058653

It shouldn't be limited to 3810 any more. I think this sounds like what you want:

" On FXO interfaces, the voice port does not answer until the remote side answers."

-wes

On Apr 17, 2013, at 10:42 AM, Jeffrey Girard <jeffrey.girard at girardinc.com> wrote:

I have a client that is building a purpose-built system for a client.  The transport system will be HF radios.  SIP will be used between the CUCMEs (one at either end of the HF link).  One CUCME will also have FXO ports to bring in the local PBX.
 
What I am looking for is a gateway device that will answer the FXO, execute PLAR, but not cut in the audio path to allow for the HF network to make the connection.
 
So, the FXO/gateway would sense the ring voltage on the line, generate a PLAR/SIP call, and then after the far end SIP acknowledgement comes back, drop the loop (assuming loop start) so that the audio patch is complete.
 
I know this is really reaching….but does anyone have any pointers to any products?
 
T1 / E1 trunking is not available.  My client’s customer will also not accept two stage dialing – I have already been down both of those paths.
 
------------------------------------------------------------------------------------
Dr. Jeffrey T. Girard (Jeff), PhD
Colonel, United States Army (Retired)
Senior Network Engineer / VoIP Engineer - WireMeHappy.com
reply to: jeffrey.girard at wiremehappy.com
(607)835-0406 (home office)
(845)764-1661 (mobile)
(607)835-0458 (fax)
 
_______________________________________________
cisco-voip mailing list
cisco-voip at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20130417/e1e60ea0/attachment.html>