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transcript
February 27, 2007 © 2007 Sun Microsystems 1
Asterisk : Going Deeper
Stephen UhlerSun Microsystems Laboratories
February 27, 2007 © 2007 Sun Microsystems 2
Outline
• Intro: how I got into the phone business• Running Asterisk in a Corporate
environment• Running a phone system when you have a
day job• Stuff for me• Asterisk on Solaris
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February 27, 2007 © 2007 Sun Microsystems 4
Asterisk Beginnings at SUN
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How I Got into the Phone Business
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You Want What?
T1/PRI
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Phone-y ExpectationsThe good-old days, whenhanging-up on someoneactually meant something
“Can you hear me now?”
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*
*
Internet
DMZ
SlabNet *
*
OfficePhones
Home-officephones
SIP/IAX
SIP/IAXVSP
Main PBXtest PBX
SUNPBX
“T1”
SunlabsVOIPTelephonyArchitecture T1 gateway
IAX
SIPIAXHTTPS
Voicemail
HTTPSremotemanagement
firewalls
Safe Firewall Traversal
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Sunlabs phonesystem
MainPBX
LegacyPBX *
Gateway*
SparcSolaris
*Conference Server
*
SIPIAX
ISDN/PRI
*Asterisk
HTTP
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Auto-provisioning
• No fuss phone distribution
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Auto-provisioning: the Pieces• DHCP server• FTP boot/configuration
server• Corporate LDAP
authentication service• Asterisk
– IVR (extensions.conf)– Provisioning (AGI)
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Web Services Interface
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Batch control using theManager Interface
• Keeping *’s in sync– SIP registrations– DUNDI– DB entries
• Additional phoneservices
AMIManager
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SunrayServer
SunrayServer
WEBServices
Admin
smartcard usersunray location
PSTN
PBX(telephone switch)
smartca
rd su
nray
Follow-me Sunray Phone System
user location
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Portable “soft” phone
• Simple, lightweight,and functional
• Uses the IAXprotocol
• Runs on Solaris,Sunray, Windows,Linux, and Mac
• Easily customizableGUI
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Screen-based Auto Dial
• Watch the clipboardand cut buffer
• Look for phonenumbers
• Place the call– Use web services
interface– Use soft phone
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Batch AMI service: Conference Monitor
• Watch Conference“joins” and “leaves”
• Send text messages to“smart” phones– Add “conference”
menu for GUIconference controls
– Display joins andleaves
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ConMan Conference FeaturesUser Administration
Creation &Management
Selection
Monitoring & control
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Asterisk on Solaris
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Asterisk on Big Iron
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A Modest Example:1000 Calls
1 call = 8000B/sec @ 20ms/pkt = ~200B/pkt1000 calls = 50,000 pkts/sec = 10,000,000 B/sec
Poll() [schedule] [schedule] write() read()
100,000 thread schedules150,000 system calls