Hi. My SIP proxy is an OpenSIPS version 2.4.7. It was 'off' for a while and today I turned it on again for some tests.
I usually use my home office local WIFI to connect my softphones to the network and it can be all connected (online) to this SIP proxy. However, if I use the mobile network (LTE/4G) to connect the softphones to the SIP proxy, the OpenSIP returns an error 500. That is: "SIP/2.0 500 Server error occurred (7/TM)". One of the softphones (Zoiper) allows me to use a kind of "proxy PUSH". If I use it, the problem is solved even while using the mobile network. What is a proxy PUSH? Why OpenSIPs return error in a case, but not in the other one? What could I do to avoid using a 'proxy PUSH'? Local WIFI and mobile network come from different carriers. Any hint will be very helpful! Best regards. RODRIGO PIMENTA CARVALHO Inatel Competence Center Software Ph: +55 35 3471 9200 RAMAL: 979
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