Thanks for reply.
We have 20 AVAYA phone in our office.
Do we need special phone to be purchased for asterisk
I have install UBuntu 12 and no idea about what to do next.
which interface cards to purchase to set up asterisk server to make outgoing calls and receive
Analog Telephony Cards OR Digital Telephony Cards OR Hybrid Telephony Cards
After I purchase and plugin interface card into CPU how to do configuration.
My friend told me asterisk set up require interface card.
I found following link and read many articles on google but not able to understand.http://asteriskathome.sourceforge.net/handbook/
We have AVAYA phone in our office ,do we need special phones for asterisk ?
Any information regarding asterisk server setup and get following information will be highly appriciated.
Thanks & Regards