Hi,
Although zonedata.c contains ITU E.180 recommendations for Turkey, we are still experiencing unrecognized hangups from Turk Telekom PSTN lines when callers hangup. Turk Telekom does *not* provide supervised disconnects on analog PSTN, and the tone we receive we when caller hangs up is similar to busy, with three short beeps, followed by one long beep, which keeps repeating. We've tried busydetect, polarityswitch, etc. with no success. As it stands, asterisk using dahdi (with Digium TDM410p) does not work in Turkey. Can offer small bounty for any developer wishing to solve this issue. The technology we have used shown below; Asterisk 1.6.2.8 Libpri 1.4.11.1 Dahdi 2.3.0 Ubuntu Server 9.10 Kind Regards
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