Enterprises adopted advanced features like Interactive Voice Response (IVR), call forwarding, caller ID, and Voice over Internet Protocol ( VoIP). Also, at the time, mail-order catalogs with toll-free phone numbers sparked a higher volume of calls with commercial intent.īy the time the 1990s rolled around, automated telephone systems were standard in the business world. Inbound phone calls were answered and "attended" when callers could reach phone extensions. This era was long before cell phones.įast forward to the 1970s. The cost of initiating phone calls to colleagues and customers (including personal calls) added up fast. Offices had separated its telephone system from the rest of the Public Switched Telephone Network (PSTN).īack then, toll charges were a big deal. When an external call came through, the operator answered and transferred the caller to your line. Select employees had access to a phone line. Switchboards first appeared 1878, two years after the telephone itself was invented. History of the PBXĪ PBX functions much like a switchboard operator. It's not for everyone.īut first, let’s look at how we got here. There are many pros and cons to this approach. You should also know about call routing, and comfort managing Asterisk-based PBX servers. You can configure a PBX using open-source solutions that require knowledge of Linux.
IP PBX phone systems rely on SIP Trunking for phone connectivity. A PBX exists on-premises, or you can host it from the cloud securely.Īn IP PBX phone system can make and receive phone calls over the internet while maintaining analog phones throughout the office.
Let's break down this definition further.
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