Just an update on this configuration. I first wanted to verify if the card works since it has be laying around for sometime. Installed the latest PBX in Flash (purple) and the card does not work out of the box. The DAHDI configuration files had to be generated and then asterisk was able to pick up the various channels on the port. I had supplied additional power to the card as required for FXS's port to show up.
Created a trunk with the right channel into which the POTS is plugged in. Was able to make outgoing calls. Tried numerous configs but could NOT get incoming to work
Out of curiosity I plugged the card back in to LMCE 8.10. The version of asterisk uses Zaptel (renamed to DAHDI in new releases due to trademark concerns). apt-get install zaptel
installed the package. There are some binaries that check for the card and builds configuration files. Had to get some sample configuration off the Internet to have a complete set of files.
Created trunks in the FreePBX GUI (Advanced-->Configuration-->Phone Setup) and was able to make outgoing calls. Incoming was NOT successful as with PBX in Flash. The only difference between the two setups was I had a lot of echo in LMCE. In LMCE I was not able to get power to the card. Will purchase a connector to extend power to the card to see if the echo goes away.
I have spent a lot of time trying to figure out how to get incoming calls without success. On the asterisk CLI I don't see anything when i try calling from my cell. I am using Comcast Digital Voice. Any insights will be appreciated.
I used the following website for reference (http://www.cadvision.com/blanchas/Asterisk/
). Refer to the zaptel how-to.