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+======= CHANGELOG =======

+

+Versions:

+

+== 1.0.0 - 2022-1-27 ==

+* Initial release.

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+                    GNU AFFERO GENERAL PUBLIC LICENSE

+                       Version 3, 19 November 2007

+

+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>

+ Everyone is permitted to copy and distribute verbatim copies

+ of this license document, but changing it is not allowed.

+

+                            Preamble

+

+  The GNU Affero General Public License is a free, copyleft license for

+software and other kinds of works, specifically designed to ensure

+cooperation with the community in the case of network server software.

+

+  The licenses for most software and other practical works are designed

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+

+  When we speak of free software, we are referring to freedom, not

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+  Developers that use our General Public Licenses protect your rights

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+

+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING

+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS

+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY

+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE

+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF

+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD

+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),

+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF

+SUCH DAMAGES.

+

+  17. Interpretation of Sections 15 and 16.

+

+  If the disclaimer of warranty and limitation of liability provided

+above cannot be given local legal effect according to their terms,

+reviewing courts shall apply local law that most closely approximates

+an absolute waiver of all civil liability in connection with the

+Program, unless a warranty or assumption of liability accompanies a

+copy of the Program in return for a fee.

+

+                     END OF TERMS AND CONDITIONS

+

+            How to Apply These Terms to Your New Programs

+

+  If you develop a new program, and you want it to be of the greatest

+possible use to the public, the best way to achieve this is to make it

+free software which everyone can redistribute and change under these terms.

+

+  To do so, attach the following notices to the program.  It is safest

+to attach them to the start of each source file to most effectively

+state the exclusion of warranty; and each file should have at least

+the "copyright" line and a pointer to where the full notice is found.

+

+    <one line to give the program's name and a brief idea of what it does.>

+    Copyright (C) <year>  <name of author>

+

+    This program is free software: you can redistribute it and/or modify

+    it under the terms of the GNU Affero General Public License as published by

+    the Free Software Foundation, either version 3 of the License, or

+    (at your option) any later version.

+

+    This program is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU Affero General Public License for more details.

+

+    You should have received a copy of the GNU Affero General Public License

+    along with this program.  If not, see <http://www.gnu.org/licenses/>.

+

+Also add information on how to contact you by electronic and paper mail.

+

+  If your software can interact with users remotely through a computer

+network, you should also make sure that it provides a way for users to

+get its source.  For example, if your program is a web application, its

+interface could display a "Source" link that leads users to an archive

+of the code.  There are many ways you could offer source, and different

+solutions will be better for different programs; see section 13 for the

+specific requirements.

+

+  You should also get your employer (if you work as a programmer) or school,

+if any, to sign a "copyright disclaimer" for the program, if necessary.

+For more information on this, and how to apply and follow the GNU AGPL, see

+<http://www.gnu.org/licenses/>.

new file mode 100644

@@ -0,0 +1,120 @@

+<span style="display:block;height:15px!important"></span>

+<p align="center"><img src="https://git.doublebastion.com/sip-trip-phone/raw/develop/img/sip_trip_phone_logo.png" alt="SIP Trip Phone" width="171px" height="119px"/></p>

+

+<span style="display:block;height:20px!important"></span>

+

+**SIP Trip Phone is a Nextcloud application that acts like a browser phone. It connects to an Asterisk server to make and receive phone calls using SIP over WebSocket and WebRTC.**

+

+For calls to and from regular phone numbers, a telnyx.com or localphone.com account is needed and a real phone number acquired from one of the two providers of SIP services. 

+Nextcloud must use HTTPS. Asterisk has to be installed on a VPS or dedicated server. Once SIP Trip Phone gets connected to Asterisk, Asterisk can be connected to any SIP provider, 

+but SIP Trip Phone has been tested only with Telnyx and Localphone. This application is based on the ctxSip phone.

+

+<span style="display:block;height:20px!important"></span>

+

+## Main Features

+<span style="display:block;height:10px!important"></span>

+

+* 📞 SIP Trip Phone allows making and receiving calls to/from any mobile or landline phone at lower rates than with regular phones. It is known that VoIP phone calls are up to 70% cheaper than regular phone calls. International VoIP phone calls can be even 90% cheaper.

+

+* 🌐 You can acquire phone numbers in countries of your choice and make cheap international phone calls to receivers in those countries. When calling you back on those numbers, the receivers will pay as for local calls.

+

+* 🆓 You can make free calls over the Internet between extensions configured on the underlying Asterisk server.

+

+* ☎️ SIP Trip Phone logs recent phone calls and their duration and allows pausing, muting and transferring phone calls.

+

+* 🚩 On-screen notifications on incoming calls.

+

+* 📃 Once you open SIP Trip Phone, you can use it even if you are logged out of Nextcloud.

+

+* 💻 On the underlying Asterisk server you can implement an IVR (Interactive Voice Response or voice menu) and many advanced PBX features such as voicemail, queue management, music on hold, number blacklisting, call recording, audio conference calls, etc.

+

+* 💰 The only ongoing cost is about $1 per month (depending on the country) for a phone number. No contracts.

+

+* 💸 Low per minute prices: you can make calls within the US starting from $0.0050 per minute and receive calls with $0.0075 per minute or less (Telnyx), or $0.0060 per minute for outgoing calls and $0 for incoming calls (Localphone).

+

+<span style="display:block;height:10px!important"></span>

+

+Double Bastion is not affiliated with Telnyx or Localphone.

+

+<span style="display:block;height:20px!important"></span>

+

+<p align="center">Initial screen</p>

+<span style="display:block;height:10px!important"></span>

+<span style="display:block;margin:auto;width:412px;">![Image of SIP Trip Phone Interface](https://git.doublebastion.com/sip-trip-phone/raw/develop/img/sip_trip_phone_initial_screen.png)</span>

+<span style="display:block;height:40px!important"></span>

+<p align="center">Dialpad</p>

+<span style="display:block;height:10px!important"></span>