Remote diagnostics will take care of most of your home electronics, but a few repairmen will still make house calls via video phone. 大部分家用电子设备将通过远程诊断得到维修，但也有一些修理工作仍需要通过可视电话寻求上门服务。
For this reason, it is improper for a notarial agency to directly issue an official letter or allow notaries make a video telephone attestation at the request of a foreign court. 因此，公证处不宜应外国法院要求直接出具公函并由公证员在可视电话上作证。
