Digital Dial-In allows one to reach particular branches of a company’s private branch exchange (PBX) directly. Digital Dial-In always consists of a certain number of successive figures (the range of direct inward dialling).
Digital Dial-In allows one to reach particular branches of a company’s private branch exchange (PBX) directly. Digital Dial-In always consists of a certain number of successive figures (the range of direct inward dialling).