Retronetworking » OCTOI - Osmocom Community TDM over IP

h1. DIVF Dialplan

Our main yate switch (@divf.retronetworking.org) has (as of December 1st, 2023) the following philosophy of processing called/calling party numbers:

h2. Incoming calls from ISDN (Q.931) attached subscribers/PBXs

h3. PBXs within the +49-30 (or any other German area code prefix

* Convert the Calling Number to national format, if it is "unknown" (@caller_to_national@)

** this means something like 03012342111/unknown/isdn or 03012342111/unknown/unknown gets translated to 3012342111/national/isdn

* collect all the overlapped digits

* directly route calls of any type to old 4-digit short-hand codes for backwards compatibility (i.e. 2yyy, 3yyy, 4yyy, 9yyy, 9yyyy)

* convert Called Number to national format (@convert_called@)

** if Called Number is national format, keep it

** if Called Number is international format, keep it

** if Called Number is unknown, translate as follows

*** if it starts with 00, strip that, add 49 and change type to international

*** if it starts with 0, strip that and change type to national

* route international calls to international destinations (@intl_outbound@)

** convert Calling Number from national to international (@caller_to_intl@)

* route national calls to national destinations (@natl_outbound@)

** block/drop calls to any prefixes resrved in German national diaplan (like 500/501, 701, 801, 90[1-5], ...)

** route anything to area code 30 to @berlin@

** route anything to area code 4644 to the EWSD of @jolly (via national ISUP/SS7 via TDMoIP)

* prefix-match to direct international interconnects

** 4205 gets routed to jpesak EWSD (via international ISUP/SS7 over TDMoIP)

** anything else gets routed via enumroute to "C-NET / CKTS":https://www.ckts.info/

h2. Incoming calls from C-NET/CKTS via IAX