1The eXtented eXosip stack(3)      libeXosip2      The eXtented eXosip stack(3)
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NAME

6       The eXtented eXosip stack - libeXosip2 Version 3.0.3
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9   Modules
10       How-To initialize libeXosip2.
11       How-To initiate, modify or terminate calls.
12       How-To send or update registrations.
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Detailed Description

15       libeXosip2 Version 3.0.3
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17       See also:
18           http://savannah.gnu.org/projects/exosip
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What is eXosip

21       libeXosip2 implements the Session Initiation Protocol (SIP -rfc3261-)
22       libeXosip2 is GPL (COPYING). Please understand the licencing details
23       before using it!
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25       For any use of this library beyond the rights granted to you by the GPL
26       license, please contact my company at <aymeric@antisip.com>.
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What is the relation between osip & eXosip2

29       The GNU osip stack is the first step needed to implement SIP
30       applications. As a low layer stack, there is no limitation in the way
31       to use it, but the very large API makes it rather complex and not
32       suitable for beginners.
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34       The eXtended eXosip library is based on osip and implements a lot more
35       SIP stuff so you can quickly build compliant SIP applications. The API
36       is enough flexible to allow you to control and complete SIP messages.
37       Thus, it keeps the stack extensible.
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39       While osip can be used for any SIP applications, eXosip2 only provide
40       APIs to control endpoints.
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What is SIP

43       SIP is an IP telephony protocol made by the IETF. It is an effort to
44       create a simple (telephony is never simple) and powerfull protocol for
45       next generation telephony systems.
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SIP features

48       SIP is not just about telephony. It's much more that what you expect
49       from phones. SIP means mobility, video, textual call informations, file
50       exchange, instant messaging, presence support and much more!
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eXosip2 is free software

53       As eXosip2 is GPL, you MUST choose to release your SIP applications
54       based on eXosip2 under the GPL license.
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56       For any use of this library beyond the rights granted to you by the GPL
57       license, please contact my company at <aymeric@antisip.com>.
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59       With oSIP (which is LGPL), you still have the choice to implement
60       propriatory application and link with oSIP. For the benefit of the
61       community (and for your own benefit), please consider implementing your
62       application in GPL.
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64       Still with osip, you have to respect the license terms. Mainly, users
65       of your software must be able to fix bugs in osip themselves. (they
66       must have the source code, be able to compile it and link your product
67       with the new version.)
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Thanks

70       Thanks to all the contributors and to all bug reporters. Enjoy osip!
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74Version 3.0.1                     30 Aug 2007     The eXtented eXosip stack(3)
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