divisumma18

JsSIP 3.7.1 seems to have the same issue described here: https://twinklephone.yahoogroups.narkive.com/aXB3Vk5Q/twinkle-doesn-t-allow-sending-dtmf-during-earlymedia TLDR: Sending a DTMF tone with `JsSIP.RTCSession.sendDTMF()` after a "183 Session Progress" and before a "SIP/2.0 200 OK" should...