I think a patton can. I have one or two laying about and can always get a demo for you as a dealer.
Patton has a combo device also (2fxs/2fxo). In either case to interface with the old pbx or key systems you want fxs devices to connect to the old CO ports on those old systems and give those pbs "dial tone" which can then do a sip register to verizon if needed. The patton dial plan is flexible enough (example) with a fxo device, if someone dials "911" we can have it drop an active call, and complete this emergency call. ============================ Tony Graziano, Manager Telephone: 434.984.8430 Fax: 434.984.8431 Email: [email protected] LAN/Telephony/Security and Control Systems Helpdesk: Telephone: 434.984.8426 Fax: 434.984.8427 Helpdesk Contract Customers: http://www.myitdepartment.net/gethelp/ ----- Original Message ----- From: [email protected] <[email protected]> To: [email protected] <[email protected]> Sent: Tue Aug 24 14:24:57 2010 Subject: [sipx-users] Relatively off topic - FXS with POTS failover This has nothing to do with Sipx at all. I couldn't think of a better group to ask though.... If that makes this completely inappropriate, I will not add any more emails to this thread. We have 50+ locations where we cannot currently practically put in new Sipx systems because of cabling issues. They all have old school systems with 8 to 15 handsets and 4 to 8 POTS lines. As part of our overall VoIP contract with Verizon, they are putting in FXS boxes at each of theses sites so we can use Verizon SIP services without replacing the infrastructure. Verizon uses Mediatrix 4100s for this. It is a 4104, 4108, or 4116 depending on the numbers of POTS lines currently in use at the clinic. We are leaving one emergency POTS line for backup outbound dialing only. This is critical that outbound dialing is not affected if the sip trunk/wan circuit goes down. At our pilot site, Verizon put in a 4108, and everything seemed to work fine until we tested the emergency scenario. The 4108 simply bypasses/patches one of the ports directly to the emergency POTS line. This doesn't work for us. We never know what line these phone systems are set to use, and our testing has shown that different handsets in the facilities pickup different outbound lines. We inherited all of these clinics, so there is every type of PBX known to man. Attempting to reprogram them is not an option. Verizon's plan was to add a second device called a Mediatrix 1204. It appears to basically be an FXO box. They also were going to use a new firmware for the 4100 box that allowed it to fail over to sending its sip traffic to the 1204 if the primary Verizon sip trunk was inaccessible. The 1204 then sent it out a POTS line. I didn't really like the complexity of the design, but I was wiling to go along with it because Verizon was pretty much going to eat the cost since their setup didn't perform as they advertised. Surprise, surprise, at the last minute, we find out it doesn't work. The new code on the 4100 is failing their tests and not working as advertised. After this discussion, I told them they need to look outside their 'product catalog' and see if there is a more appropriate product. What I need is an FXS box that can intelligently route calls out a backup POTS line if the SIP trunk goes down. Does anyone know of a product from Audiocodes, Patton, etc, that can accomplish this? I will be glad to discuss off list if anyone wants to give me a hand here. Thanks, Matthew _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users/ _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users/
