Currently only supported by SINA.
In“Advanced-SIP-->default”.

Enable the multiple-registrations. And restart.
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Note: The essence of this function is actually simultaneous ring, hence this cannot coexist with simultaneous ring setting.
Mon ~ Fri: 9:00 ~ 19:00
1402, Jingting Building, Guangming District, Shenzhen City, Guangdong Province, China
zchen@equiinet.cn

