- retronet-octoi - lists.osmocom.org

RetroNetCall on Sept 4, 2024: Interactive DIVF testing
by Harald Welte 03 Sep '24

03 Sep '24

Dear Osmocom community, we're happy to announce the next incarnation of RetroNetCall[1], the retronetworking oriented spin-off of OsmoDevCall[2]. when: Sept 4, 2024 at 20:00 CEST where: https://osmocom.org/RetroNetCall This time, we won't have a presentation but intead a joint, collaborative session where we're analyzing and debugging any potentially remaining (or new?) issues with divf.retronetworking.org, our central soft-switch of the OCTOI community TDMoIP network. Participants are invited to try making certain calls and we will look at logs/traces and see what we can fix or improve. This meeting will have the following schedule: 20:00 meet + greet 20:10 presentation as outlined above 21:00 unstructured supplementary social event [3] Attendance is free of charge and open to anyone with an interest in Osmocom or open source cellular technologies. More information about RetroNetCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/retronetworking/wiki/RetroNetCall Looking forward to meeting you soon! Best regards, Harald [1] https://osmocom.org/projects/retronetworking/wiki/RetroNetCall [2] https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall [3] this is how we started to call the "unstructured" part of osmocom developer conferences in the past, basically where anyone can talk about anything, no formal schedule or structure. -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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RetroNetCall on Aug 8, 2024: classic PCM30 trunks with CAS signaling
by Harald Welte 10 Aug '24

10 Aug '24

Dear Osmocom community, we're happy to announce the next incarnation of RetroNetCall[1], the retronetworking oriented spin-off of OsmoDevCall[2]. when: Aug 8, 2024 at 20:00 CEST where: https://osmocom.org/RetroNetCall This time, @laforge will be presenting on *classic PCM30 trunks with channel-associated signaling* followed by a discussion how to potentially implement this using the icE1usb (See also: #6526 [4]). This meeting will have the following schedule: 20:00 meet + greet 20:10 presentation as outlined above 21:00 unstructured supplementary social event [3] Attendance is free of charge and open to anyone with an interest in Osmocom or open source cellular technologies. More information about RetroNetCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/retronetworking/wiki/RetroNetCall Looking forward to meeting you soon! Best regards, Harald [1] https://osmocom.org/projects/retronetworking/wiki/RetroNetCall [2] https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall [3] this is how we started to call the "unstructured" part of osmocom developer conferences in the past, basically where anyone can talk about anything, no formal schedule or structure. [4] https://osmocom.org/issues/6526 -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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RetroNetCall on Aug 7, 2024: classic PCM30 trunks with CAS signaling
by Harald Welte 10 Aug '24

10 Aug '24

[My apologies, I misread the calendar. It's August 7, not August 8] Dear Osmocom community, we're happy to announce the next incarnation of RetroNetCall[1], the retronetworking oriented spin-off of OsmoDevCall[2]. when: Aug 7, 2024 at 20:00 CEST where: https://osmocom.org/RetroNetCall This time, @laforge will be presenting on *classic PCM30 trunks with channel-associated signaling* followed by a discussion how to potentially implement this using the icE1usb (See also: #6526 [4]). This meeting will have the following schedule: 20:00 meet + greet 20:10 presentation as outlined above 21:00 unstructured supplementary social event [3] Attendance is free of charge and open to anyone with an interest in Osmocom or open source cellular technologies. More information about RetroNetCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/retronetworking/wiki/RetroNetCall Looking forward to meeting you soon! Best regards, Harald [1] https://osmocom.org/projects/retronetworking/wiki/RetroNetCall [2] https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall [3] this is how we started to call the "unstructured" part of osmocom developer conferences in the past, basically where anyone can talk about anything, no formal schedule or structure. [4] https://osmocom.org/issues/6526 -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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RetroNetCall on Jun 5, 2024: Nokia TCSM2 Initial examination
by Harald Welte 04 Jun '24

04 Jun '24

Dear Osmocom community, we're happy to announce the next incarnation of RetroNetCall[1], the retronetworking oriented spin-off of OsmoDevCall[2]. when: Jun 5, 2024 at 20:00 CEST where: https://osmocom.org/RetroNetCall This time, @falconia will be presenting on Nokia TCSM2, a bank of TRAUs with E1 interfaces: Part 1, initial examination of the hardware This meeting will have the following schedule: 20:00 meet + greet 20:10 presentation as outlined above 21:00 unstructured supplementary social event [3] Attendance is free of charge and open to anyone with an interest in Osmocom or open source cellular technologies. More information about RetroNetCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/retronetworking/wiki/RetroNetCall Looking forward to meeting you soon! Best regards, Harald [1] https://osmocom.org/projects/retronetworking/wiki/RetroNetCall [2] https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall [3] this is how we started to call the "unstructured" part of osmocom developer conferences in the past, basically where anyone can talk about anything, no formal schedule or structure. -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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Proper signaling of called party in incoming calls
by Harald Welte 06 Apr '24

06 Apr '24

Hi all, for historical reasons and early bugs in our dialplan I made from the beginning, the first OCTOI users are receiving inbound calls using wrong called-party address. This [still] affects * totalizator * drdeke * marrold * tmwawpl * billy549 * manawyrm * tom * gruetzkopf * roox Instead of receiving inbound calls as [I've been told it was customary] type=subscriber with no area code, the inbound calls actually arrive with potentially undefined/various type-of-number and a 030 prefix. Sending a leading '0' is always wrong in ISDN, as the valid representations of for example my ISDN deskphone are either: ton=subscriber / 12342111 ton=national / 3012342111 ton=international / 493012342111 As you can see, none of those formats have a 0 in front of the area code. I would like to migrate the users stated above to the new scheme (which is already used by a bunch of other users just fine). In the new scheme, the called party number for normal berlin subscribers would always be ton=subscriber without 0, 030 or 30 prefix and just the final 8 'local' digits. I don't want to do this unilaterally and break currently working setups. So please come forward individually and let me know when I should make the switch-over for your line. You can just tell me a date and I'll do it then. Thanks for your attention, Harald -- - Harald Welte <laforge(a)gnumonks.org> https://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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Fixes in DIVF dialplan / your help required
by Harald Welte 06 Apr '24

06 Apr '24

Greeting from the engine room! During RetroNetCall earlier this week, we had a live debug session for the dialplan on DIVF, the yate based softswithc we use as central switch within the OCTOI network. We were able to collaboratively fix a number of bugs (mostly reported by cquirin), which means we are catching more cases in which we were doing something wrong in the past. For those not that familiar with ISDN: In ISDN you not only have a string of dialled digits (like in analog POTS), but you also have the numbering plan indication and type-of-number fields together with a number. So both calling and called party can be in many different formats, and we need to try to make sense of them in the various situations, convert them to the most suitable format at the given point durin processing, etc. The fixes implemented might cause some existing setups to suddently fail. This is due to the fact that DIVF was doing something wrong in the past and has been fixed now. If you previously configured the equipment on your end to expect/generate the wrong format, you might need to make the corresponding change at your end. So please do a round of re-testing and reach out in case anything is not working for you, or you need clarification. I apologize for any turbulence this has caused, but I do think we all agree we need to aim to configure everything as proper as we can, to resemble the public ISDN service of the past. Thanks for your attention, Harald -- - Harald Welte <laforge(a)gnumonks.org> https://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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RetroNetCall on Mar 6, 2024: Telefax G4 protocol trace decoding
by Harald Welte 04 Mar '24

04 Mar '24

Dear Osmocom community, we're happy to announce the next incarnation of RetroNetCall[1], the retronetworking oriented spin-off of OsmoDevCall[2]. when: Mar 6, 2024 at 20:00 CET where: https://osmocom.org/RetroNetCall This time, @laforge will be presenting on Decoding of Telefax G4 protocol traces. We'll look into the ITU-specs of Group 4 Facsimile Service as well as at an actual B-channel protocol trace taken a few days ago. This meeting will have the following schedule: 20:00 meet + greet 20:10 presentation as outlined above 21:00 unstructured supplementary social event [3] Attendance is free of charge and open to anyone with an interest in Osmocom or open source cellular technologies. More information about RetroNetCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/retronetworking/wiki/RetroNetCall Looking forward to meeting you soon! Best regards, Harald [1] https://osmocom.org/projects/retronetworking/wiki/RetroNetCall [2] https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall [3] this is how we started to call the "unstructured" part of osmocom developer conferences in the past, basically where anyone can talk about anything, no formal schedule or structure. -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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RetroNetCall on Jan 3, 2024 (no presentation)
by Harald Welte 02 Jan '24

02 Jan '24

Dear Osmocom community, we're happy to announce the next incarnation of RetroNetCall[1], the retronetworking oriented spin-off of OsmoDevCall[2]. when: Jan 3, 2024 at 20:00 CET where: https://osmocom.org/RetroNetCall This time, there will not be any formal presentation. However, if people are interested, laforge can report on his most recent equipment acquisitions, primarily a vvariety of PDH (Siemens_FastLink) and SDH gear. Apart from that, we can chat about anything retro. This meeting will have the following schedule: 20:00 meet + greet 20:10 unstructured supplementary social event [3] Attendance is free of charge and open to anyone with an interest in retronetworking technologies. More information about RetroNetCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/retronetworking/wiki/RetroNetCall Looking forward to meeting you soon! Best regards, Harald [1] https://osmocom.org/projects/retronetworking/wiki/RetroNetCall [2] https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall [3] this is how we started to call the "unstructured" part of osmocom developer conferences in the past, basically where anyone can talk about anything, no formal schedule or structure. -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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RetroNetCall on Dec 6, 2023: Tour of DIVF (yate + dahdi-trunkdev)
by Harald Welte 05 Dec '23

05 Dec '23

Dear Osmocom community, we're happy to announce the next incarnation of RetroNetCall[1], the retronetworking oriented spin-off of OsmoDevCall[2]. when: Dec 6, 2023 at 20:00 CET where: https://osmocom.org/RetroNetCall This time, @laforge will be presenting on A tour of DIVF, the OCTOI softswitch based on yate + dahdi-trunkdev We'll look into how subscriber E1 terminate in osmo-e1d + dahid-trunkdev, how that feeds into yate, how the routing/dialplan works, as well as the new SS7/ISUP interconnects to the two EWSD. This meeting will have the following schedule: 20:00 meet + greet 20:10 presentation as outlined above 21:00 unstructured supplementary social event [3] Attendance is free of charge and open to anyone with an interest in Osmocom or open source cellular technologies. More information about RetroNetCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/retronetworking/wiki/RetroNetCall Looking forward to meeting you soon! Best regards, Harald [1] https://osmocom.org/projects/retronetworking/wiki/RetroNetCall [2] https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall [3] this is how we started to call the "unstructured" part of osmocom developer conferences in the past, basically where anyone can talk about anything, no formal schedule or structure. -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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RetroNetCall on Nov 1, 2023: EWSD Rescue + Bildtel 001
by Harald Welte 31 Oct '23

31 Oct '23

Dear Osmocom community, we're happy to announce the next incarnation of RetroNetCall[1], the retronetworking oriented spin-off of OsmoDevCall[2]. when: Nov 1, 2023 at 20:00 CET where: https://osmocom.org/RetroNetCall There won't be a formal presentation, but @lafforge will give an update on the "EWSD rescue" and his recent early research on the "BildTel 001" ISDN video phone. Attendance is free of charge and open to anyone with an interest in Osmocom or open source cellular technologies. More information about RetroNetCall, including the schedule for further upcoming events can be found at https://osmocom.org/projects/retronetworking/wiki/RetroNetCall Looking forward to meeting you soon! Best regards, Harald [1] https://osmocom.org/projects/retronetworking/wiki/RetroNetCall [2] https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall -- - Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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