Can I hook a regular phone line and regular phone to FXO and FXS ports on my router...?

I've got a Cisco 3810-V router with a DSP and an AVM that has one FXO and one FXS port.

Do I have to use special Cisco phones or some special phone line configuration, or can I just hook the normal phone line in my house to the FXO port, then take a regular RJ11 phone and hook it into the FXS and get a dial tone?
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MaestroDTAsked:
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scott30134Connect With a Mentor Commented:
Technically speaking, when you hook up that FXO line, you are hooking into a "gateway/exchange" of sorts... the phone company's commercial telephone switch.  Just as you would with a T1.  If you do T1 installs, you might think of getting a T1 voice module for your router.  It's so much nicer than just using an FXO line if you have the luxury of a commercial T1 line and don't mind shelling out the cash for the T1 voice module.  Also, another thing you might want to look into is an ATA (Analog Telephone Adapter).  They do basically the same thing as the FXO/FXS ports on your router.  Only, its a separate box that connects to your router via ethernet and has FXO and/or FXS ports on it.  It's easier to install in some cases where your phones or phone lines aren't close to your router, but you have network running near them.  Cisco makes several ATA models.  Grandstream makes one that I like with eight ports that will allow you to hook up multiple FXO or FXS lines (Grandstream GXW4108 - $350 - http://www.voipdw.com/Grandstream-GXW-4108-8-Port-FXO-IP-Analog-Gateway-p/grandstream-gxw-4108-vdw.htm ) .  I haven't used the Grandstream with Cisco, but it supports SIP and works great with Asterisk/trixbox.  When it comes to setting up the dial-peers in the router, thats a little more than CCNA level, but its not hard.  You should be able to handle it with a little research.  A quick search on the internet or on EE and you'll find enough info to get you going.  Good luck on your CCNA... I don't mean to scare you, but it was the hardest test I've ever taken.
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scott30134Connect With a Mentor Commented:
Just use your regular POTS phone line and POTS phone.  That's what its for.  If you're not familiar with how to configure it, you'll need that also.  In case you're not familiar with the term POTS (Plain Old Telephone Service).
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scott30134Connect With a Mentor Commented:
Let me clarify a little more...  You'll have to configure the router with the dial peers, but as far as the phone line and phone are concerned, regular analog telephone line from your public telephone company and regular analog telephone are what those ports are for.
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MaestroDTAuthor Commented:
awesome. yes i'm familiar with POTS, I do T1 installs a lot and am about to take my CCNA test... just know nothing about telephony. someone was telling me that an FXO port had to hook up to a PBX or some other gateway/exchange and that didn't sound right to me.
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greg wardConnect With a Mentor Systems EngineerCommented:
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scott30134Connect With a Mentor Commented:
That's some good information from Cisco in the link that Greg added, but you need to read it carefully.  It clearly says that an FXO can be used to connect to a PBX that doesn't support E&M.  Verbatim... "An FXO interface is used for trunk, or tie line, connections to a PSTN CO or to a PBX that does not support E&M signaling."  If it is a PBX that supports E&M signaling, then its not a standard analog phone line.  So, it depends on the PBX.  This is all beside the point though.  The question was could you hook it to a regular phone line, and the answer is yes.  By regular phone line, I'm assuming you mean a standard analog POTS line like what you would typically get from your local phone company, and I'm assuming you were wanting to use it as a tie line.  I didn't just google my answer.  I've done this before.  I've tied a FXO port to an analog line from AT&T, also to an analog telephone adapter which converted back to VOIP to go to an IP PBX, and I've connected a Cisco FXO port to an old legacy Nortel PBX as well as a Redcom IGX commercial switch.
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scott30134Connect With a Mentor Commented:
MaestroDT,
  Here is a good site that will help you configure this as well:
http://www.ciscopress.com/articles/article.asp?p=664150
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