upc

  1. Outbound calls not working

    Hello, We are based in Switzerland and have a 3CX installation with 3 sip trunks. Two SIP trunks from Swisscom that are working perfectly fine and one from UPC Cablecom. With UPC cablecom sip trunk we are not able to make outbound calls, we followed this guide...
    • jleontidis
    • Thread
    • outbound calling sip trunk upc
    • Replies: 5
    • Forum: Other
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