internal MySipCallback(SipService sipService) : base() { this.sipService = sipService; }
internal MySipCallback(SipService sipService) : base() { this.sipService = sipService; }
internal MySipCallback(SipService sipService) : base() { this.sipService = sipService; }
internal MySipCallback(SipService sipService) : base() { this.sipService = sipService; }