sip server

Just a warning, I am a newbie with SIP, so I appreciate your patience. I have a system comprised of a Dahua VTO2202F-P-S2 and two VTH5341G-W monitors. I use the SIP server on the VTO (running firmware 4.5), and all audio and video calling between the three units works entirely as expected...

Hi, I'm currently attempting to configure a Dahua Door Station VTO with a third party SIP gateway. I'm using a GrandstreamUCM6202 and I've got it registered with the necessary inbound/outbound rules. I can't seem to get the VTO registered with the gateway, any help would be appreciated :)

Hi all, I own a VTO2211G-WP + VTH5341G-W but can't make it work and would like some advice. It is set up as one VTO and one VTH with VTO acting as SIP server. I can access VTO live view trough the VTH. But once I try to call the VTH from the VTO I get a black screen with the audio (only one...