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A Case Study of Installing 48 E1 with Elastix
1. A Case Study of Installing
48 E1 with Elastix
Belief Mo
www.openvox.cn
2. Agenda
l The Background
l The Past
l The Present
l A Successful Case Study
l The Challenges
l The Solutions
l The Results
l The Future
3. The Background
l The Past
l A brief history
l Asterisk in 2002
l OpenVox in 2002
l trixbox CE in 2006
l FreeIris (Asterisk-based) in 2007
l AsterCC (Asterisk-based) in 2007
l FreeSWITCH in 2008
l Elastix (Chinese Version) in 2010
4. l The Present
l Asterisk
l Asterisk Community
l Elastix Community (Largest)
l trixbox Community
l Other asterisk-based software communities
l FreeSWITCH
l FreeSWITCH-CN Google/QQ Group
19. l Hardware Configuration
l 6 D430 set as NET
l 6 D430 set as CPE
l Winsip calls NET->E1->CPE->answer and play
audio.
20.
21. Step 2
l Software Configuration
l lspci (recognize D430, must be V1.5 to support 12
cards to work together.)
22.
23. l ulimit -n (asterisk supports max 1024 files by
default, 12 cards will need 12288 files.)
24. l load driver, 1488 channels (31*4*12=1488)
l cat/proc/interrupts {only one(#26) IRQ # is
registered by one wct4xxp; it’ll be 12 before IRQ
agent}
25.
26. l asterisk -r
l pri show spans (48 spans are up)
35. l The Results
l 70%-580% CPU loads
l The System is very stable.
l Great Voice Quality
l The Largest Density Installation that We’ve done
with Elastix
36. Agenda
l The Background
l The Past
l The Present
l A Successful Case Study
l The Challenges
l The Solutions
l The Results
l The Future
37. The Future
l The Challenge - Are we ready for this fast-
growing market?
l OpenVox
l 8/16 port E1 products
l Hot-plug VoIP gateway
l Elastix