Hello, we use Sangoma Technologies Corp. A104X hardware and asterisk with DSS1 (EURO-ISDN). We would like to use early media, because we have to play a free announcement to inform the customers about the charges. Unfortunately we get a hangup with Release Cause 102 after about 15 seconds of the announcement...
I've already searched through sangoma wiki, but all i've found is how I could use early media with SS7 / woomera.conf. But we don't use SS7, we use zaptel and therefore have zapata.conf. I've also wrote an email to Sangoma and they've told me that it would be something in the Q.931 signaling that would enable early media, so I would have to speak with the developers of zaptel/libpri/asterisk to find out if this feature is possible and also how to enable it. Is there any setting for zapata.conf or zaptel.conf? Callprogress is allready set to yes in zapata.conf. Is this the correct setting and/or is there anything else? I assume that I will need to set callprogress=yes in zapata.conf, which I've already done but as mentioned earlier, it does not work porperly anyway. Then I've also found an article at voip-info.org (http://www.voip-info.org/wiki/index.php?page=Asterisk+config+zapata.conf) that says about callprogress "The callprogress feature is highly experimental and can easily detect false answers, so don't count on it being very accurate. Also, it is currently configured only for standard U.S. phone tones." Does that mean that it only works sometimes for American ISDN? We use DSS1. Anyway, I can only use this feature if I can rely on it.. Can anyone tell me more? We try to use this feature as it is explained at voip-info.org (http://www.voip-info.org/wiki/view/Asterisk+cmd+Progress): exten => _11951.,1,Progress() exten => _11951.,n,NoOp(${STRFTIME(${EPOCH},,%Y.%m.%d-%H:%M:%S)} Startzeit) exten => _11951.,n,Playback(tt-monkeys,noanswer) We have also made an ISDN trace and what we see ist this: > Message type: PROGRESS (3) > [1e 02 81 88] > Progress Indicator (len= 4) [ Ext: 1 Coding: CCITT (ITU) standard (0) 0: 0 Location: Private network serving the local user (1) > Ext: 1 Progress Description: Inband information or appropriate pattern now available. (8) ] < Protocol Discriminator: Q.931 (8) len=13 < Call Ref: len= 2 (reference 24992/0x61A0) (Originator) We are sending the correct progress indicator (8), but it seems that we are sending the progress information in the wrong message type. Our network provider has just told us that we have to send progress information with isdn message type "Setup", "Callproceeding" or "Alerting". We do send it now with Message Type PROGRESS which does not work and I don't know how I can change it. Maybe I can not even change it??? Thanks for helping. Greetings from Germany, Sabine Jordan _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-biz mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-biz
