Hello;

I have 5 touch screens in a project, 2 TSW750 4 TSW1060 I try to talk to them with sip server. The Tsw750 also has no problem, it can call, it comes in a work call and shows an outgoing call. But TSW1060S also have a problem. The voice is coming and going. but when you get an incoming call, there's no ringing on the touch screens. By the way, I'm using Grandstream ucm6202 as the SIP server. I thought it was the SIP server, and I disabled it. Because sip server was sending the incoming and outgoing ringing tone. I hooked up touch screens as Pear to Pear. I wanted to ring the bell yourself. As if it plays when it is searched, tsw750 works fine in a way that did not have problems. but TSW 1060 VoIP reserved join De Ringring_fb, Ringback_fb and many of them do not come. I'm looking forward to your help with this.