vbuzzer is the SIP provider, but it doesn't matter with the SIP provider, as on SPA3102 once I set *67, all SIP providers' caller id are not showed, I have another SIP provider (freephoneline), I setup it as voice gateway on SPA3102, freephoneline doesn't support *67 block caller id function, so it is the function of SPA3102 device, but it looks like OBI110 doesn't support it even I tried latest firmware (OBi-1-3-0-2675 and 2669) , did I miss something or it is a firmware bug?