Archive for October, 2007

Astersik TOF (The Future of Telephony) ebooks

Posted on October 27, 2007. Filed under: ATOF, Asterisk, VoIP, ebook |

PDF file.(4.5MB) USA1 USA2 UK NL huihoo.org
Online readding by Google Book Search, pleaes go to http://books.google.com/books?id=9_wRFy5OGw4C

Read Full Post | Make a Comment ( None so far )

เชื่อมสาย E1 กับ Asterisk

Posted on October 27, 2007. Filed under: Asterisk, BRI, Carrier, E1, J1, PRI, Signals, T1, VoIP |

เพิ่งจะมีโอกาสได้ต่อสาย E1 แต่มีปัญหาเยอะเหลือเกิน ไว้จะบ่นทีหลัง ตอนนี้บันทึกความรู้ไว้ก่อนก่อนอื่นต้องรู้ก่อนว่า จะเชื่อมสัญญาณนั้น ควรจะรู้อะไรบ้าง?
ก่อนจะเชื่อมต่อระบบ ควรเตรียมตัวให้พร้อม หาข้อมูล ซึ่งสิ่งที่ควรทราบมีดังนี้

Media type
Line decoding
Signal type
Signals mode
Switch type

Media typeนิยมใช้ E-carrier เป็นส่วนใหญ่ สำหรับ T-carrier จะใช้ใน อเมริกา,เกาหลี ในญีปุ่นจะเรียกว่า J-carrier
E-carrierE1 สายมีความเร็ว 2.048 Mbps มี 32 timeslot (หรือบางทีก็เรียกว่า circuit) เมื่อนำไปใช้กับ voice จะใช้ได้จริง 30 ช่อง (เรียว่า D-Channel)ช่อง 0(TS0) ถูกใช้สำหรับ timing, CRC ช่อง 16 (TS16) ถุกใช้สำหรับ telecommunications signalling (เรียกกว่า B-Channel) เช่น CAS และ CCS [...]

Read Full Post | Make a Comment ( None so far )

Asterisk 1.2 VS Asterisk 1.4

Posted on October 27, 2007. Filed under: Asterisk, Compare, Opensource, VoIP |

What is difference between Asterisk 1.2 and Asterisk 1.4jsmith post on version 1.2 vs 1.4 :
Asterisk 1.2 was branched in November of 2005, and since then has only received bug fixes (with a few minor exceptions). You’d really only want to use it if you have specific problems with Asterisk 1.4 that keep you from [...]

Read Full Post | Make a Comment ( None so far )

Asterisk Distro

Posted on October 27, 2007. Filed under: Asterisk, AsteriskNOW, Distro, Elastix, FreePBX, Opensource, Trixbox, VoIP, VoiceBuntu |

TrixboxLinks: http://www.trixbox.org
Trixbox is a business class IP PBX system based on the Asterisk Open Source PBX Software. trixbox CE is the original free, fully featured, open source PBX application platform system and the new trixbox Pro family (including the free SE version) is a hybrid-hosted solution aimed at reliability, ease of use, and supportability. From [...]

Read Full Post | Make a Comment ( None so far )

Originate tip

Posted on October 27, 2007. Filed under: AMI, Asterisk, DialPlans, Opensource, Originate, Trixbox, VoIP |

I found from http://forums.digium.com/viewtopic.php?t=16347Lem__Mel suggest a tip to handle error on Originate command* notice ‘phoneNumber’
Action: OriginateChannel: Local/inChannel@callExten: outChannelContext: callPriority: 1Variable: timeout=3Variable: phoneNumber=SIP/henri[call] exten => outChannel,1,Dial(${phoneNumber}, ${timeout})exten => outChanneln,GOTOIF((${DIALSTATUS} != ANSWER) ?erreur)exten => outChannel,n(erreur),UserEvent(CALL_FAILED|Reason:${DIALSTATUS}|DetailedCause: ${HANGUPCAUSE});exten => inChannel,1,Answer()exten => inChannel,n,WaitMusicOnHold(3600) exten => [...]

Read Full Post | Make a Comment ( None so far )

Hello Vista! 32-bit or 64-bit – Which one?

Posted on October 20, 2007. Filed under: 32-bit, 64-bit, OS, Vista |

My Windows 2003 just gone. It’s good chance to use Vista! Windows Vista 32 bit or 64 Bit? which one for me?here is answer:

Windows Vista Benchmark: 64-bit Faster Than 32-Bit
32 bit Windows Vista VS 64 bit Windows Vista
Choosing between Windos Vista 32-bit and 64-bit Editions
Windows Vista RTM Software Compatibility List

So…. Why I [...]

Read Full Post | Make a Comment ( None so far )

ACHI config

Posted on October 20, 2007. Filed under: ACHI, Gigabyte, Mainboard, NCQ, SATA, bios |

just confuse some config on my bios setting. My harddisk is ST380811AS and it support for NCQ (Native Command Queuing) technology, but I never use it!
I found the useful link – http://www.atomicmpc.com.au/forums.asp?s=2&c=8&t=18198 (Post by Arcerious)

1. SATA RAID / AHCI Mode OPTIONS- RAID – Set the onboard SATA controller to RAID mode.- AHCI – Set the [...]

Read Full Post | Make a Comment ( None so far )

Liked it here?
Why not try sites on the blogroll...