System information

A Prompt-Recording Application 394
Speech Recognition and Text-to-Speech 395
Text-to-Speech 395
Speech Recognition 396
Conclusion 396
18. External Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397
Calendar Integration 398
Compiling Calendaring Support into Asterisk 398
Configuring Calendar Support for Asterisk 399
Triggering Calendar Reminders to Your Phone 402
Controlling Calls Based on Calendar Information 407
Writing Call Information to a Calendar 408
Conclusion 411
VoiceMail IMAP Integration 411
Compiling IMAP VoiceMail Support into Asterisk 412
Using XMPP (Jabber) with Asterisk 418
Compiling Jabber Support into Asterisk 419
Jabber Dialplan Commands 419
chan_gtalk 425
Skype Integration 429
Installation of Skype for Asterisk 429
Using Skype for Asterisk 429
LDAP Integration 434
Configuring OpenLDAP 435
Compiling LDAP Support into Asterisk 437
Configuring Asterisk for LDAP Support 437
Text-to-Speech Utilities 440
Festival 440
Cepstral 442
Conclusion 442
19.
Fax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443
What Is a Fax? 443
Ways to Handle Faxes in Asterisk 443
spandsp 444
Obtaining spandsp 444
Compiling and Installing spandsp 444
Adding the spandsp Library to Your libpath 445
Recompiling Asterisk with spandsp Support 445
Disabling spandsp (Should You Want to Test Digium Fax) 446
Digium Fax For Asterisk 446
Obtaining Digium FFA 446
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