1. Asterisk: The Open Source PBX
Or: Impress chicks with your GNU/Linux phone system
Travis Cross / OfficeTone, LLC

2. ?

3. PBX (private branch exchange)

4. that's not very helpful

5. phone system

6. so?

7. take for granted

8. voic

9. extensions

10. paging

11. call parking

12. etc.

13. motivation

14. history

16. phone systems are old

18. really old

20. large

22. small

24. proprietary

25. $

26. relatively few vendors

27. limited standards compliance

28. e.g.

29. ISDN

30. T.30 fax

31. slow release cycles

32. prevents new uses

33. high cost for new solutions

34. lock in

36. free software to the rescue!

38. free

39. supports hardware

40. stable

41. supported & continually developed

42. the itch

43. mainframes are still among us

44. dedicated hardware

45. dedicated hardware

46. dedicated hardware logic in software

50. commercial support

51. manage development

52. important

53. digium sells hardware

55. cpu

56. moore's law

58. new world

59. disruptive technology

60. commoditization

61. $

62. $

63. choice

64. flexibility

65. interoperability

66. build new solutions

67. “the closed-source world cannot win an evolutionary arms race with open-source communities that can put orders of magnitude more skilled time into a problem.” -- Eric S. Raymond

69. imagine

70. shoulders of giants

71. now possible

72. legacy PBX migration gateway

73. voic system

74. interface to low-cost long distance

75. add remote IP users

76. connect remote offices (no toll charges)

77. find me, follow me

78. IVR (interactive voice response)

79. IVR is to voice as CGI is to web

80. billing

81. reporting

82. weather

83. home automation

84. client?

85. open future

86. only the start

87. text to speech (festival)

88. voice recognition (sphinx)

89. unified messaging

90. high fidelity voice

91. video

92. wireless

94. nits and grits

95. concepts

96. < 2 >

97. signaling

98. voice channels

99. protocols

100. closed

101. H.323 (ITU)

102. SCCP / CallManager (Cisco)

103. open

104. SIP (IETF)

105. IAX2 (Asterisk)

106. codecs

107. GSM

108. g.711a/u

109. g.726

110. g.729a

111. SPEEX

112. patents

113. g.729a

114. transcoding cost

116. terminology

117. old distinctions are obsolete

118. station

119. line

120. trunk

121. extension

122. replaced by

123. < 2 >

124. channel

125. extension

126. channel = node / endpoint

127. extension = address

128. that's it?

129. pretty much

131. let's get started

132. what you need

134. commodity x86 / x86-64 hardware

135. gnu/linux install

137. some skills

138. abracadabra

140. becomes

142. or even

144. wow

145. I know

147. business

148. license

150. v2

151. and...

152. digium's choice

153. releases from all contributors

156. documentation

157. very little

158. very little (and improving)

159. community support

163. interest?

164. enormous

165. astricon

167. passionate community

169. the big opportunity

170. IT integration

172. for next time

173. quality of service

174. regulatory environment

175. e911

176. peering

177. number discovery

178. VoIP spam

179. network neutrality

180. not to mention

181. installation

182. configuration

183. origination

184. termination

185. DIDs

186. number portability

187. getting dial tone

188. current limitations

189. asterisk manager interface

190. the agi

191. contexts

192. macros

193. conferencing

194. call data recording

195. writing dial plans

196. NAT-bypass

197. security considerations

198. pulse and ring

199. traditional telephony

200. etc.

202. shameless self-plug

203. OfficeTone

204. lower the barrier

205. cut complexity

206. do it right

207. in search of

208. resellers

210. asterisk is the future

212. questions?