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          | SIP express media server  - README |
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Introduction:

 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).

Requirements:

 1. Ser version >= 0.8.12: SIP Epress Router (www.iptel.org/ser)

    - Sems requires Ser as its SIP stack. 
    - Sems & Ser communicate together through FIFO file, which means that a Ser
      instance is mandatory on every host using Sems.

Bug report & Contact:

  If you have problems configuring Ser&Sems for your needs,
  look at the support information on the Ser homepage (www.iptel.org/ser).


Authors:

  Raphael Coeffic (rco@iptel.org) &
  Ulrich Abend (ullstar@iptel.org).


Thanks goes to:

  * Ulrich Abend (ullstar@iptel.org)
      for his great debuging work and ISDN gateway.

  * Jiri Kuthan (jiri@iptel.org)
      for the debuging work and help to implement
      communicating part between Ser & Sems ('vm' module).

  * All the others who helped during test session :-)