Showing posts with label misc. Show all posts
Showing posts with label misc. Show all posts

Friday, April 01, 2016

OpenIMS

http://www.openimscore.org/




Thursday, March 31, 2016

VoLTE vs. OTT

http://wiki.mbalib.com/zh-tw/VOLTE




Friday, March 25, 2016

UMTS All-IP Network

http://wmnet.cs.nthu.edu.tw/Course/PCS/slides/Ch12-UMTS%20All%20IP%20Networks.pdf

Predecessor of today's IMS...


Tuesday, March 08, 2016

maven build jar

https://cwiki.apache.org/confluence/display/MAVEN/Tutorial%3A+Build+a+JAR+file+with+Maven+in+5+minutes


make sure you have pom.xml

$ mvn package

Monday, February 29, 2016

SIP servers and flow

https://wirelesscafe.wordpress.com/2008/03/29/what-is-sip-session-initiation-protocol/

Proxy
Registrar/Location (directory?)
Redirect



Tuesday, December 22, 2015

Monday, December 21, 2015

CCNA Voice

http://www.cisco.com/c/en/us/training-events/training-certifications/certifications/associate/ccna-voice.html
http://smalleaf.blogspot.tw/2010/11/ccna-voice-640-460.html
https://www.youtube.com/watch?v=Ew8M-W_teOs


Thursday, December 17, 2015

kktix

http://www.inside.com.tw/2015/01/17/kktix-tech-share
http://www.slideshare.net/poga/kktix-go-modernweb-2015


Wednesday, December 16, 2015

Tuesday, December 15, 2015

SIP trunking

http://www.3cx.com/pbx/sip-trunking/

The trusted old PSTN is coming to an end. Be it Analog, ISDN BRI, E1 or t1 lines, telephony is moving from PSTN to much more modern and flexible SIP trunks.

Monday, December 14, 2015

VoIP

http://www.netadmin.com.tw/article_content.aspx?sn=1209100017
https://www.digium.com/products/voip-gateways
https://en.wikipedia.org/wiki/Voice_over_IP
http://wiki.mbalib.com/zh-tw/VoIP




Sunday, December 13, 2015

VoIP Gateway

https://www.digium.com/products/voip-gateways
http://www.3cx.com/pbx/voip-gateway/



























































IP PBX

http://www.ggutc.com.tw/NEWS/news_ippbx_upg.htm
http://www.netcom.com.tw/Mosa/index.htm
http://eservice.seed.net.tw/class/class147.html
http://www.3cx.com/pbx/ip-pbx-faq/
http://www.3cx.com/pbx/ip-pbx-overview/

過去企業的語音通訊需要接一條PBX交換機線路,而數據通訊則需要透過路由器接上一條網路線路,另外如果企業的語音通訊要達到VOIP功能,則必須再在PBX上面再接上一台Gateway,
但是,使用了IP PBX設備之後,就不用再接那麼多元而複雜的線路,只要透過一台IP PBX就可以達到全部的功能。
另外,IP PBX所具備的電話隨身功能,則又讓VOIP跨入行動化的門檻,這也是PBX與Gateway整合應用所辦不到的



A VoIP Phone System / IP PBX system consists of one or more SIP phones / VoIP phones, an IP PBX server and optionally includes a VoIP Gateway.

The IP PBX server is similar to a proxy server: SIP clients, being either soft phones or hardware based phones, register with the IP PBX server, and when they wish to make a call they ask the IP PBX to establish the connection. The IP PBX has a directory of all phones/users and their corresponding SIP address and thus is able to connect an internal call or route an external call via either a VoIP gateway or a VoIP service provider to the desired destination.



Friday, December 11, 2015

Thursday, December 10, 2015

Asterisk

https://en.wikipedia.org/wiki/Asterisk_(PBX)
http://www.voip-info.org/wiki/view/Asterisk+SIP+not-proxy



Asterisk can thus be described best as a "back-to-back user agent" (B2BUA), which is also consistent with the use of the term "PBX".


















Wednesday, December 09, 2015

Twilio w/ AWS EC2

http://www.slideshare.net/twilio/twilio-voice-applications-with-amazon-aws-s3-and-ec2-presentation/22-Twilio_AWSEach_Instance_Serves_One
http://www.slideshare.net/twilio/asynchronous-architectures-for-implementing-scalable-cloud-services-evan-cooke-gluecon-2012?related=1





Tuesday, December 08, 2015

scrum framework and process

https://en.wikipedia.org/wiki/Scrum_(software_development)





















Monday, December 07, 2015

彼得原理

http://wiki.mbalib.com/zh-tw/%E5%BD%BC%E5%BE%97%E5%8E%9F%E7%90%86
http://wiki.mbalib.com/zh-tw/%E5%A2%A8%E8%8F%B2%E5%AE%9A%E5%BE%8B


“墨菲定律”、“帕金森定律”和“彼德原理”並稱為二十世紀西方文化三大發現。

Saturday, December 05, 2015

Anti-pattern

https://en.wikipedia.org/wiki/Anti-pattern
https://zh.wikipedia.org/wiki/%E5%8F%8D%E9%9D%A2%E6%A8%A1%E5%BC%8F


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