[cisco-voip] FXS/FXO - Fax Lines?

[Matthew Saskin]

At the simplest:
FXS provides battery current and ring voltage
FXO receives battery current and ring voltage.

They are not interchangeable - FXO's will be used when terminating an 
analog log provided by a PABX, from a telco, etc.

FXS ports are necessary when you need to generate dial-tone/ring, i.e.; 
for analog phones, fax machines, etc.

-matt

Weigand, John V. wrote:
> 	
> 
> Litigation Management
> 
> 	
> 
> Serious Medicine for the Defense ® <http://www.medicineforthedefense.com/>
> 
> 	
> 	
> 
> This may seem like a stupid question, but I’m having trouble grasping 
> the difference between FXS and FXO ports. Currently, we have all our 
> POTS fax lines going out through FXS ports on our Callmanager gateways, 
> which is the way our VAR set it up. Can we setup those FXO ports as POTS 
> lines and attach fax machines to those, or will that not work?
> 
>  
> 
> Thanks in advance.
> 
> 
> 	*John V. Weigand*
> Help Desk Support
> 
> Litigation Management, Inc.
> 300 Allen-Bradley Drive
> Suite 200
> Mayfield Heights, OH 44124
> 
> 	
> 
> 
> 
> 
> Tel:
> Fax: 440-484-2020
> Cell:
> email: <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com> 
> <mailto:jvw at medicineforthedefense.com>jvw at medicineforthedefense.com 
> <mailto:jvw at medicineforthedefense.com>
> 
> 
> PRIVILEGE AND CONFIDENTIALITY NOTICE
> 
> The information in this electronic mail is intended for the named 
> recipients only. It may contain privileged and confidential material and 
> may be protected under law by the Health Insurance Portability and 
> Accountability Act. Any use of this information by anyone other than the 
> intended receiver is prohibited. If the reader of this message is not 
> the intended recipient, you are hereby notified that any dissemination, 
> distribution, copying, or other use of this message or its attachments 
> is strictly prohibited. If you have received this message in error, 
> please notify the sender immediately by replying to this electronic 
> e-mail or by calling (800) 778-5424. Please delete it from your 
> computer. Thank you.
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip