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OpenR2 in Asterisk

This document discusses MFC/R2 signaling and its implementation in Asterisk. It describes OpenR2, a new open source library for R2 signaling that aims to provide generic, flexible support across platforms. OpenR2 integrates seamlessly with Asterisk and supports several R2 variants. It offers configurable options like call logging and blocking collect calls. The author encourages testing OpenR2 and providing feedback to continue improving support for R2.

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MFC/R2 free of headaches or your money back OpenR2 in Asterisk Mois´s Silva e Astricon September 2008
MFC/R2 free of headaches or your money back MFC/R2 signaling Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
MFC/R2 free of headaches or your money back MFC/R2 signaling What is it? MFC/R2 or just R2 for its friends. Old days telephony signaling for trunks. Analog and digital versions. Digital version defined by ITU Q.421. Lots of variants around the world.
MFC/R2 free of headaches or your money back MFC/R2 signaling Where is being used? Old, but widely used. Heavily used in Central and South America (M´xico, e Colombia, Argentina, Brazil etc). Cheaper than ISDN PRI lines. R2 is not going anywhere anytime soon.
MFC/R2 free of headaches or your money back MFC/R2 signaling How does the digital version work? Uses E1 facilities. Inband MF tones for register signaling. CAS for line supervision signaling.
MFC/R2 free of headaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants.
MFC/R2 free of headaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different.
MFC/R2 free of headaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts.
MFC/R2 free of headaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around).
MFC/R2 free of headaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around). Some even use DTMF instead of MF.
MFC/R2 free of headaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around). Some even use DTMF instead of MF. Different methods to block collect calls.
MFC/R2 free of headaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around). Some even use DTMF instead of MF. Different methods to block collect calls. Different way to notify end of DNIS (MF tone vs timeout).
MFC/R2 free of headaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around). Some even use DTMF instead of MF. Different methods to block collect calls. Different way to notify end of DNIS (MF tone vs timeout). Some countries do not even regulate its variant.
MFC/R2 free of headaches or your money back R2 in Asterisk Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
MFC/R2 free of headaches or your money back R2 in Asterisk Asterisk approach for PSTN signaling. One channel driver to rule them all. Most signaling implemented right into zaptel/chan zap (now DAHDI/chan dahdi). Some with the help of protocol libraries (libpri, libss7).
MFC/R2 free of headaches or your money back R2 in Asterisk Asterisk approach for PSTN signaling. One channel driver to rule them all. Most signaling implemented right into zaptel/chan zap (now DAHDI/chan dahdi). Some with the help of protocol libraries (libpri, libss7).
MFC/R2 free of headaches or your money back R2 in Asterisk Asterisk approach for PSTN signaling. One channel driver to rule them all. Most signaling implemented right into zaptel/chan zap (now DAHDI/chan dahdi). Some with the help of protocol libraries (libpri, libss7).
MFC/R2 free of headaches or your money back R2 in Asterisk Unicall R2 architecture. A different approach. Unicall is an abstraction layer in the form of a simple library. All signaling details are hidden in protocol modules. The channel driver (chan unicall), ideally, interacts with a single signaling interface (libunicall). Ideally, adding a new signaling protocol requires no changes to the Asterisk channel driver.
MFC/R2 free of headaches or your money back R2 in Asterisk Unicall R2 architecture. A different approach. Unicall is an abstraction layer in the form of a simple library. All signaling details are hidden in protocol modules. The channel driver (chan unicall), ideally, interacts with a single signaling interface (libunicall). Ideally, adding a new signaling protocol requires no changes to the Asterisk channel driver.
MFC/R2 free of headaches or your money back R2 in Asterisk Unicall issues. Sad but true. Versioning hell. Multiple components, multiple user errors. GPL license can be sometimes a show-stopper. You need a whole new driver (patching) and libraries just to get R2 working. Poor support.
MFC/R2 free of headaches or your money back R2 in Asterisk Digivoice R2. The Brazilian solution. R2 implementation included in Digivoice library Voicerlib. Support for 3 variants (Brazil, Argentina, M´xico). e Voicerlib Just works with Digivoice cards. Echo issues in their boards.
MFC/R2 free of headaches or your money back R2 in Asterisk PIKA technologies solution. Recent support on their GrandPrix suite. Support for 3 variants (Brazil, Argentina, M´xico). e No 64 bit support. Just works with PIKA boards.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Why another R2 solution?
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Why another R2 solution? All previous solutions are not quite generic.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Why another R2 solution? All previous solutions are not quite generic. All previous solutions do not work with FreeSwitch at all.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Why another R2 solution? All previous solutions are not quite generic. All previous solutions do not work with FreeSwitch at all. All previous solutions are not integrated seamlessly into Asterisk.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Why another R2 solution? All previous solutions are not quite generic. All previous solutions do not work with FreeSwitch at all. All previous solutions are not integrated seamlessly into Asterisk. All previous solutions are not what I wanted.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Design goals.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Design goals. Written from scratch.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Design goals. Written from scratch. Component Independent.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Design goals. Written from scratch. Component Independent. Interoperable.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Design goals. Written from scratch. Component Independent. Interoperable. Flexible.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk The library. Small and functional. LGPL license. LGPL SpanDSP detector embedded into OpenR2. r2test program provided to test R2 links. Works with Zaptel 1.2, 1.4 and DAHDI. No other libraries required (other than libc and libpthread).
MFC/R2 free of headaches or your money back OpenR2 in Asterisk Where to get it? Branches for Asterisk 1.2, 1.4 and 1.6 Branches available from ’moy’ team branch. Testing of the 3 branches has been done with success in several countries. Plan to merge with trunk someday (Digium decides). Need feedback!
MFC/R2 free of headaches or your money back OpenR2 in Asterisk How does it fit in Asterisk? OpenR2 fits the same way libpri and libss7 fit into chan zap. Works with Asterisk 1.2, 1.4 and 1.6. chan zap support for R2 only compiled if OpenR2 is present.
MFC/R2 free of headaches or your money back OpenR2 in Asterisk How does it fit in Asterisk? OpenR2 fits the same way libpri and libss7 fit into chan zap. Works with Asterisk 1.2, 1.4 and 1.6. chan zap support for R2 only compiled if OpenR2 is present.
MFC/R2 free of headaches or your money back OpenR2 Features Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
MFC/R2 free of headaches or your money back OpenR2 Features OpenR2 variants implemented so far. ITU Argentina Brasil China Colombia Czech Ecuador M´xico e Philippines Venezuela
MFC/R2 free of headaches or your money back OpenR2 Features More fun with options.
MFC/R2 free of headaches or your money back OpenR2 Features More fun with options. Specify call category.
MFC/R2 free of headaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels.
MFC/R2 free of headaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS.
MFC/R2 free of headaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone.
MFC/R2 free of headaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone. Forced release.
MFC/R2 free of headaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone. Forced release. Immediate accept.
MFC/R2 free of headaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone. Forced release. Immediate accept. Get ANI first.
MFC/R2 free of headaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone. Forced release. Immediate accept. Get ANI first. Advanced protocol configuration file.
MFC/R2 free of headaches or your money back OpenR2 Features More coming. . . Windows. OpenZAP. FreeSwitch. DTMF/R2. DiscOS. Trixbox (Already announced by Fonality). More R2 variants.
MFC/R2 free of headaches or your money back Closing Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
MFC/R2 free of headaches or your money back Closing Give OpenR2 a try The time for MFC/R2 to stop being a problem in Asterisk is coming. Despite being still under development, people has used OpenR2 in production. I will implement any missing feature you may suggest. I will fix any bug you find.
MFC/R2 free of headaches or your money back Closing Time for that question you were holding on.
MFC/R2 free of headaches or your money back Closing Where to find more information? http://www.libopenr2.org/ (Don’t mistake it with openr2.org) http://svn.digium.com/view/asterisk/team/moy/
MFC/R2 free of headaches or your money back Closing Drop me a line. Thanks! Blog: http://www.moythreads.com/ E-mail && Google Talk && MSN: moises.silva@gmail.com Notice I am not from Brazil, even though I can read Portuguese, try using Spanish or English please :)

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OpenR2 in Asterisk

  • 1.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Mois´s Silva e Astricon September 2008
  • 2.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
  • 3.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling What is it? MFC/R2 or just R2 for its friends. Old days telephony signaling for trunks. Analog and digital versions. Digital version defined by ITU Q.421. Lots of variants around the world.
  • 4.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling Where is being used? Old, but widely used. Heavily used in Central and South America (M´xico, e Colombia, Argentina, Brazil etc). Cheaper than ISDN PRI lines. R2 is not going anywhere anytime soon.
  • 5.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling How does the digital version work? Uses E1 facilities. Inband MF tones for register signaling. CAS for line supervision signaling.
  • 6.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants.
  • 7.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different.
  • 8.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts.
  • 9.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around).
  • 10.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around). Some even use DTMF instead of MF.
  • 11.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around). Some even use DTMF instead of MF. Different methods to block collect calls.
  • 12.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around). Some even use DTMF instead of MF. Different methods to block collect calls. Different way to notify end of DNIS (MF tone vs timeout).
  • 13.
    MFC/R2 free ofheadaches or your money back MFC/R2 signaling What’s the deal with variants? R2 has a scary number of variants. Position of CD bits may be different. MF tones mean different things in different countries in different contexts. Some ask DNIS before ANI (and fail when done the other way around). Some even use DTMF instead of MF. Different methods to block collect calls. Different way to notify end of DNIS (MF tone vs timeout). Some countries do not even regulate its variant.
  • 14.
    MFC/R2 free ofheadaches or your money back R2 in Asterisk Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
  • 15.
    MFC/R2 free ofheadaches or your money back R2 in Asterisk Asterisk approach for PSTN signaling. One channel driver to rule them all. Most signaling implemented right into zaptel/chan zap (now DAHDI/chan dahdi). Some with the help of protocol libraries (libpri, libss7).
  • 16.
    MFC/R2 free ofheadaches or your money back R2 in Asterisk Asterisk approach for PSTN signaling. One channel driver to rule them all. Most signaling implemented right into zaptel/chan zap (now DAHDI/chan dahdi). Some with the help of protocol libraries (libpri, libss7).
  • 17.
    MFC/R2 free ofheadaches or your money back R2 in Asterisk Asterisk approach for PSTN signaling. One channel driver to rule them all. Most signaling implemented right into zaptel/chan zap (now DAHDI/chan dahdi). Some with the help of protocol libraries (libpri, libss7).
  • 18.
    MFC/R2 free ofheadaches or your money back R2 in Asterisk Unicall R2 architecture. A different approach. Unicall is an abstraction layer in the form of a simple library. All signaling details are hidden in protocol modules. The channel driver (chan unicall), ideally, interacts with a single signaling interface (libunicall). Ideally, adding a new signaling protocol requires no changes to the Asterisk channel driver.
  • 19.
    MFC/R2 free ofheadaches or your money back R2 in Asterisk Unicall R2 architecture. A different approach. Unicall is an abstraction layer in the form of a simple library. All signaling details are hidden in protocol modules. The channel driver (chan unicall), ideally, interacts with a single signaling interface (libunicall). Ideally, adding a new signaling protocol requires no changes to the Asterisk channel driver.
  • 20.
    MFC/R2 free ofheadaches or your money back R2 in Asterisk Unicall issues. Sad but true. Versioning hell. Multiple components, multiple user errors. GPL license can be sometimes a show-stopper. You need a whole new driver (patching) and libraries just to get R2 working. Poor support.
  • 21.
    MFC/R2 free ofheadaches or your money back R2 in Asterisk Digivoice R2. The Brazilian solution. R2 implementation included in Digivoice library Voicerlib. Support for 3 variants (Brazil, Argentina, M´xico). e Voicerlib Just works with Digivoice cards. Echo issues in their boards.
  • 22.
    MFC/R2 free ofheadaches or your money back R2 in Asterisk PIKA technologies solution. Recent support on their GrandPrix suite. Support for 3 variants (Brazil, Argentina, M´xico). e No 64 bit support. Just works with PIKA boards.
  • 23.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
  • 24.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Why another R2 solution?
  • 25.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Why another R2 solution? All previous solutions are not quite generic.
  • 26.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Why another R2 solution? All previous solutions are not quite generic. All previous solutions do not work with FreeSwitch at all.
  • 27.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Why another R2 solution? All previous solutions are not quite generic. All previous solutions do not work with FreeSwitch at all. All previous solutions are not integrated seamlessly into Asterisk.
  • 28.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Why another R2 solution? All previous solutions are not quite generic. All previous solutions do not work with FreeSwitch at all. All previous solutions are not integrated seamlessly into Asterisk. All previous solutions are not what I wanted.
  • 29.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Design goals.
  • 30.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Design goals. Written from scratch.
  • 31.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Design goals. Written from scratch. Component Independent.
  • 32.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Design goals. Written from scratch. Component Independent. Interoperable.
  • 33.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Design goals. Written from scratch. Component Independent. Interoperable. Flexible.
  • 34.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk The library. Small and functional. LGPL license. LGPL SpanDSP detector embedded into OpenR2. r2test program provided to test R2 links. Works with Zaptel 1.2, 1.4 and DAHDI. No other libraries required (other than libc and libpthread).
  • 35.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk Where to get it? Branches for Asterisk 1.2, 1.4 and 1.6 Branches available from ’moy’ team branch. Testing of the 3 branches has been done with success in several countries. Plan to merge with trunk someday (Digium decides). Need feedback!
  • 36.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk How does it fit in Asterisk? OpenR2 fits the same way libpri and libss7 fit into chan zap. Works with Asterisk 1.2, 1.4 and 1.6. chan zap support for R2 only compiled if OpenR2 is present.
  • 37.
    MFC/R2 free ofheadaches or your money back OpenR2 in Asterisk How does it fit in Asterisk? OpenR2 fits the same way libpri and libss7 fit into chan zap. Works with Asterisk 1.2, 1.4 and 1.6. chan zap support for R2 only compiled if OpenR2 is present.
  • 38.
    MFC/R2 free ofheadaches or your money back OpenR2 Features Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
  • 39.
    MFC/R2 free ofheadaches or your money back OpenR2 Features OpenR2 variants implemented so far. ITU Argentina Brasil China Colombia Czech Ecuador M´xico e Philippines Venezuela
  • 40.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More fun with options.
  • 41.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More fun with options. Specify call category.
  • 42.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels.
  • 43.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS.
  • 44.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone.
  • 45.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone. Forced release.
  • 46.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone. Forced release. Immediate accept.
  • 47.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone. Forced release. Immediate accept. Get ANI first.
  • 48.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More fun with options. Specify call category. You can save per-call protocol logs at different levels. Max ANI, Max DNIS. Block collect calls with double answer or MF tone. Forced release. Immediate accept. Get ANI first. Advanced protocol configuration file.
  • 49.
    MFC/R2 free ofheadaches or your money back OpenR2 Features More coming. . . Windows. OpenZAP. FreeSwitch. DTMF/R2. DiscOS. Trixbox (Already announced by Fonality). More R2 variants.
  • 50.
    MFC/R2 free ofheadaches or your money back Closing Outline 1 MFC/R2 signaling 2 R2 in Asterisk 3 OpenR2 in Asterisk 4 OpenR2 Features 5 Closing
  • 51.
    MFC/R2 free ofheadaches or your money back Closing Give OpenR2 a try The time for MFC/R2 to stop being a problem in Asterisk is coming. Despite being still under development, people has used OpenR2 in production. I will implement any missing feature you may suggest. I will fix any bug you find.
  • 52.
    MFC/R2 free ofheadaches or your money back Closing Time for that question you were holding on.
  • 53.
    MFC/R2 free ofheadaches or your money back Closing Where to find more information? http://www.libopenr2.org/ (Don’t mistake it with openr2.org) http://svn.digium.com/view/asterisk/team/moy/
  • 54.
    MFC/R2 free ofheadaches or your money back Closing Drop me a line. Thanks! Blog: http://www.moythreads.com/ E-mail && Google Talk && MSN: moises.silva@gmail.com Notice I am not from Brazil, even though I can read Portuguese, try using Spanish or English please :)