Just to be clear, when you mentioned others buying an additional ATA, do you have a link? I'm a little tired and on pain killers right now, but the only reason I can think for doing that is because they bought another VoIP unlock key from Freephoneline to use separately from their home phone--and specifically for their alarm system. So, they're using one Freephoneline account for their home phone, and they're using another Freephoneline account for their alarm system. Only one FPL number is allowed per account. Each FPL account requires a different email address (with gmail, you may be able to use variations, such as email@example.com,
firstname.lastname@example.org though). And each FPL account costs $79.95 + tax for use with an ATA.
http://forums.redflagdeals.com/newegg-o ... #p27516035
Edit:fastlayne wrote: I use FPL and The Monitoring Center with an old DSC PC3000. I have two FPL numbers - one for the house phone system and one for the alarm.
I connected the DSC directly to a dedicated VOIP ATA. I did not want the DSC seizing my phone line and for $40 the extra ATA isolates any problems. If I needed to tweak the DSC ATA, I did not have to change my house phone ATA.
I had some problems initially with the useless Cisco SPA112, but have not had any problems with the Obi100.
(Disclaimer: I assume all risks in using VOIP for my alarm system. Thanks to everyone that is worried about my well being.)
@Ssseth Buying another VoIP unlock key from Freephoneline costs $79.95+tax (FPL only allows one device registration per account at any given time). Let's work under the premise that each FPL account allows any combination of two simultaneous channels/calls (1 outgoing and 1 incoming; 2 incoming; or 2 outgoing). Regardless, most alarm system are going to be seizing a phone line anyway during an alarm event. While you'd be better off with a two phone port ATA so that when one port/line is seized you can use the other port/line to make an outgoing call, if you don't mind having not being able to use your home phone during an alarm event, you don't need to buy another ATA. If you need a phone jack splitter for use with your current ATA, a splitter will work (again, during an alarm event, with a single phone port ATA, if the line is completely seized, you won't be able to use FPL as a home phone). You can also wire your existing ATA so that all phone jacks work in your house (ensure that power from the telephone company is disconnected at the demarc):
(I won't be answering questions about this) visit http://www.voipmyhouse.com/#safestmethod and http://forums.redflagdeals.com/newegg-o ... #p27069896.
If you decide to buy two FPL VoIP unlock keys and are concerned about both money (except for additional electrical costs) and features, I'd consider buying an OBi200 for the home phone and keep your existing Grandstream ATA for the alarm system. There's no way I'd pay any money for an inferior Grandstream ATA that can't route telemarketing calls elsewhere with FPL. (Also, I'm using a lot more VoIP services than just FPL.) I would then use voip2.freephoneline.ca for the OBi200 and use what you're currently using, voip.freephoneline.ca, for your Grandstream ATA.
If you buy a two phone port ATA, you don't need two ATAs.
Regardless of whether you decide you don't need two FPL VoIP unlock keys, you could get an OBi202, which does cost more than a HT502 and has a lot more features. While I haven't tested the capacity to use the second FPL channel to make an outgoing call during an alarm event, in theory, using a two phone port ATA should allow you to do this with one FPL VoIP unlock key. FWIW, regular prices for OBi200 (one phone port) is $69.99+tax from Newegg.ca and $99.99+tax for the OBi202 (two phone ports) from Newegg.ca:https://www.newegg.ca/Product/ProductLi ... isNodeId=1 (avoid the OBi300 series since it doesn't support Google Voice, and the OBi100/110 series is discontinued and is no longer supported with future firmware development). The OBi200 and OBi202 have gone on sale before for $49.99+tax and $69.99+tax, respectively. But if you don't know why they're more powerful than any other ATAs intended for home use, then you probably don't need them. (And, in the end, it doesn't matter to me what you use. If you read through this guide, especially the telemarketer and Auto Attendant sections, you can probably figure out why I'm using an OBi202 with FPL: http://forum.fongo.com/viewtopic.php?f= ... 805#p74624.)
If money is your primary concern, the HT502, as kanata2004, mentioned makes sense.
It should also be noted that if your power goes out--without a UPS--or if your internet service drops for any reason, your alarm system (and FPL) won't work either. It's a good idea to invest in a UPS: https://www.newegg.ca/Product/Product.a ... 6842101419 (this is just an example, you don't have to get this one or even buy one from Newegg).