Sems is a extensible media server which helps you adding voice services to your VoIP system.
Each module or plug-in extends your system. Audio plug-ins enable new codecs and file format whereby application plug-ins implements the service's logic.
You can easely extend Sems by creating your own plug-ins.
The following default modules are shipped with Sems stable version:
Voicemail: records voice messages and mail them to the callee.
ISDN Gateway: support calls from and to the PSTN.
Conferencing: enables many people to talk together at the same time.
Announcement: plays an announcement.
Number reader: reads the called number.
Echo: test module echoing your voice.
Some new services like IVR, Text-To-Speech, MP3 and iLBC support are only available in the developement version of Sems.
Sems only support patent free codecs. Which means that we won't support codecs like g729. On the other hand, we have support for all important patent free (g711u, g711a, GSM06.10 and iLBC).
If you have problems configuring Ser&Sems for your needs, look at the support information on the Ser homepage (www.iptel.org/ser).
Raphael Coeffic <rco@iptel.org> & Ulrich Abend <ullstar@iptel.org>.