I installed chan_dongle in RasPBX (raspberrypi 3b, debian stretch, Freepbx 15.0.17.9, asterisk 16.15.0, Huawei e1550 with firmware 11.608.12.00.143).
Inbound calls work perfectly, but when I call from SIP to GSM the GSM-party doesn’t hear the opposite side for about 10-12 seconds. In the logs I see nothing special except something like NOTICE: translate.c:597 ast_translate: 492 lost frame(s) 493/0 (slin@8000)->(gsm@8000).
No matter what codec I use.
I would really appreciate it if anybody could explain what does this mean and how to solve it?
Have you tried to config the codec of HW side?
As far as I understand you have no choice on the dongle side.
Please make sure gsm format has been installed and reconfi the order of the codecs from freepbx.
The codec is installed and configured. In this case GSM is a codec of the sip-party. The same happens with alaw, ulaw, or any other codec. Slin (wich always comes from the dongle) is also enabled, but I don’t know sip-clients that can use it.
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