《離婁章句下》
徐子曰：「仲尼亟稱於水，曰：『水哉，水哉！』何取於水也？」
孟子曰：「原泉混混，不舍晝夜。盈科而後進，放乎四海，有本者如是，是之取爾。苟為無本，七八月之閒雨集，溝澮皆盈；其涸也 ，可立而待也。故聲聞過情，君子恥之。」
孟子曰：「人之所以異於禽於獸者幾希，庶民去之，君子存之。
舜明於庶物，察於人倫，由仁義行，非行仁義也。」
孟子曰：「禹惡旨酒而好善言。湯執中，立賢無方。文王視民如傷 ，望道而未之見。武王不泄邇，不忘遠。周公思兼三王，以施四事 ；其有不合者，仰而思之，夜以繼日；幸而得之，坐以待旦。」
孟子曰：「王者之跡熄而詩亡，詩亡然後春秋作。晉之乘，楚之檮杌，魯之春秋，一也。其事則齊桓、晉文，其文則史。孔子曰：『其義則丘竊取之矣。』」
孟子曰：「君子之澤五世而斬，小人之澤五世而斬。予未得為孔子徒也，予私淑諸人也。」
孟子曰：「可以取，可以無取，取傷廉；可以與，可以無與，與傷惠；可以死，可以無死，死傷勇。」
若有人能懂孟子千年前之言，奇也怪哉！若無人能懂孟子千年前之言，奇也怪哉！！『讀書』非為『考試』也，會『考試』者，未必愛『讀書』也。朱子觀書深得孔孟『水味』乎？
朱熹‧觀書有感
半畝方塘一鑑開，
天光雲影共徘徊。
問渠那得清如許，
為有源頭活水來。
昨夜江邊春水生，
蒙衝巨艦一毛輕。
向來枉費推移力，
此日中流自在行。
本立道生自有源頭活水來，縱使科技世界瞬息萬變︰
【當下有】
The Gold Standard: It’s Incredible PBX for Raspbian 8 and Raspberry Pi 3
【今恐無】
Here’s a nice bit of new functionality for your Raspberry Pi: the good folks at Elastix, the open-source unified communications outfit, have developed a new version of Elastix 32 bits, called μElastix, and ported it to the Raspberry Pi. I know a lot of you were clamouring for Voice over Internet Protocol (VoIP) on your Pis (for people confused by the jargon, VoIP is a way of making cheap phone calls over the internet); we’re very pleased that Elastix have thought the Raspberry Pi significant enough that it’s been worth making a new version for the platform.
無入而不可自在行耶？？
因此捨大部頭 FusionPBX + FreeSwitch ︰
Welcome to FusionPBX
FusionPBX can be used as a highly available single or domain based multi-tenant PBX, carrier grade switch, call center server, fax server, voip server, voicemail server, conference server, voice application server, appliance framework and more. FreeSWITCH™ is a highly scalable, multi-threaded, multi-platform communication platform.
It provides unlimited extensions, voicemail-to-email, music on hold, call parking, call center, call queues, phone provisioning and many other features. It provides the functionality your business needs and brings corporate level phone system features to small, medium and large businesses.
FusionPBX 4.2 Released
We are pleased to announce the release of FusionPBX 4.2. It represents more than a thousdand hours of development from people all over the world. Thanks to those who have contributed with features, bug fixes, sponsored features and reporting issues.
Changes include a customizable boostrap menu, more customizability in the theme on a global or per domain basis. New features include an improved look and feel, responsive customizable menu, improvements to provisioning, multiple security improvements, more scalability, better IVR Menu, Conferencing and Phrase support. This release version has been tested more than any other release and many have used it in production as a pre-release.
A list of changes between the versions of FusionPBX can be found in the release notes.
【repositories】
【Raspbian Installer】
Raspberry Pi Script
- Download ‘Raspian’ image.
http://www.raspberrypi.org/downloads
Write the image to an 2gb+ higher SD card. The following tool is a simple windows application that can write the image to an SD card.
https://launchpad.net/win32-image-writer/+download
Start it up the Raspberry Pi by pluggin in the USB power with HDMI plugged into a monitor or tv.
Login with: username: pi password raspberry
- The first time you load the operating system it comes up with a menu.
This menu has an option to enlarge the image to fit the SD card. Run that or you won’t have enough space to add FreeSWITCH.
cd /usr/src wget https://raw.githubusercontent.com/fusionpbx/fusionpbx-scripts/master/install/debian/install_fusionpbx.sh
chmod 755 install_fusionpbx.sh ./install_fusionpbx.sh
- Take a look at the options available to the script. you could install freeswitch first, and then install fusionpbx or you can install both.
install_fusionpbx.sh install-both auto
Recomendations:
- 4gb or larger SD card.
- SQLite is ideal for the Raspberry Pi for the database. Alternatively Postgres also work rather well.
- Web server nginx. (saves RAM)
特取靈巧女巫︰
GNU SIP Witch
What is GNU SIP Witch?
GNU SIP Witch is a secure peer-to-peer VoIP server that uses the SIP protocol. Calls can be made peer-to-peer behind NAT firewalls, and without needing a service provider. GNU SIP Witch does not perform codec operations and thereby enables SIP endpoints to directly peer negotiate call setting and process peer to peer media streaming even when multiple SIP Witch call nodes at multiple locations are involved. This means GNU SIP Witch operates without introducing additional media latency or offering a central point for media intercept or capture. GNU SIP Witch can be used to build secure and intercept-free telephone systems that can operate over the public Internet.
GNU SIP Witch is designed to support network scaling of telephony services, rather than the heavily compute-bound solutions we find in use today. This means a call node has a local authentication/registration database, and this will be mirrored, so that any active call node in a cluster will be able to accept and service a call. This allows for the possibility of live failover support in the future as well.
GNU SIP Witch is not a SIP “router”, and does not try to address the same things as a project like iptel “Ser”. GNU SIP Witch is being designed to create on-premise SIP telephone systems, telecenter servers, and Internet hosted SIP telephone systems. One important feature will include use of URI routing to support direct peer to peer calls between service domains over the public internet without needing mediation of an intermediary “service provider” so that people can publish and call sip: uri’s unconstrained. GNU SIP Witch is about freedom to communicate and the removal of artifical barriers and constraints whether imposed by monopoly service providers or by governments.
GNU SIP Witch can also be used to construct embedded telephony services as part of GNU Telephony Open Embedded. GNU SIP Witch is built from GNU uCommon, which optionally offers a complete runtime C++ library environment for developing deeply embedded targets without requiring the use of the ANSI C++ standard library, rtti, exception handling, or STL templates. GNU SIP Witch will also build on all versions of GCC from 2.95 through 4.4, and with many other C++ compilers as well as on most platforms including GNU/Linux, xBSD systems, Mac OS/X, and Microsoft Windows.
【Raspbian Info】
pi@raspberrypi:~ $ apt-cache show sipwitch Package: sipwitch Source: sipwitch (1.6.1-1) Version: 1.6.1-1+b3 Architecture: armhf Maintainer: Jonas Smedegaard <dr@jones.dk> Installed-Size: 301 Depends: libavahi-client3 (>= 0.6.16), libavahi-common3 (>= 0.6.16), libc6 (>= 2.15), libexosip2-11, libgcc1 (>= 1:4.4.0), libgnutls-deb0-28 (>= 3.3.0), libosip2-11, libsipwitch1, libstdc++6 (>= 4.3.0), libucommon6, adduser Recommends: cron, logrotate Suggests: sipwitch-cgi Homepage: http://www.gnu.org/software/sipwitch/ Priority: optional Section: net Filename: pool/main/s/sipwitch/sipwitch_1.6.1-1+b3_armhf.deb Size: 111172 SHA256: c4864bab364b1714376c1b08a96a1ea49604a1a4ff72385d138832dc4e61457e SHA1: 6b237a2beb60e4322e9ee734549fe799a5e78c22 MD5sum: afc2c518a46fe3e5f8de5a611685f582 Description: secure peer-to-peer VoIP server for the SIP protocol GNU SIP Witch is a secure peer-to-peer VoIP server. Calls can be made even behind NAT firewalls, and without needing a service provider. SIP Witch can be used on the desktop to create bottom-up secure calling networks as a free software alternative to Skype. SIP Witch can also be used as a stand-alone SIP-based office telephone server, or to create secure VoIP networks for an existing IP-PBX such as Asterisk, FreeSWITCH, or Yate. . This package contains the sipwitch daemon and related utilities. Description-md5: b893e11ca114411138c5ac39455b42e9
，以為入門之階也☆