The device i speaker used protocol sip standard, by the way, we can test it by bringing the device to use with the sip server, and then found that i speaker compatible with the sip server to another as well Since Customer want to use zycoo i. -speaker c20 working with UCM6108 on intercom System but we Found a Problem with a Ucm6108 Device Can not I register with c20-Speaker. I c20-Speaker.
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