Current services include a calling card service and a call-back service. It can connect to a variety of other H323 applications including Microsoft NetMeeting. It also supports ILS servers. The base distribution includes several channel backends, as well as applications. However, the beauty of Asterisk is its ability to be extended using its APIs and dynamic module loader.
End users can even write their own applications that run on the system.
It may forms words, depending on your phone pad. Right now, the script only checks the last four digits of the phone number. SillyPhone well help you learn if your phone number forms funny and cool words. It's silly, but useful for making phone numbers easy to remember. Only works for ISDN and countries with 8-digit phone numbers.