What is the difference between the FXS and FXO voice cards?
I have just inherited a network which contains a small group of sites using VoIP. They are using Cisco 1750s with the VIC cards and Frame Relay. Some of the routers contain the FXS VIC cards and some contain the FXO cards. The documentation I have found explaining the differences is unclear to me so I would appreciate a detailed explanation of when you would use each.
Re: What is the difference between the FXS and FXO voice cards?
the 'S' in FXS stands for station, meaning telephones or other client end units such as fax machines. FXO are trunks, so you use them to connect to either the public telephone switch (PSTN) or to another telephone system in your network.
In other words, you use the FXO ports between your frame relay network and your FXS ports for telephones in your branch offices. Also, remember that FXS ports are used for analog devices, so you don't put Cisco IP phones on them.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.