4 ms·
Last big company I worked for had 90 offices in all 50 states. Up until a large consolidation and VOIP change, Each office had a PRI line (or more) with a phon
by briffle 8y ago
Last big company I worked for had 90 offices in all 50 states. Up until a large consolidation and VOIP change, Each office had a PRI line (or more) with a phone number associated with each incoming line (for the hunt group). Each PRI came with 24 numbers, 1 'main' number, and 20 others for the individual lines in the PRI. Calling the main number would forward to the 20+ numbers in a hunt group. All 23 of those numbers would then forward to the local PBX, and then get the 'please enter the extension of the party you are trying to reach' kind of IVR response. (there were hundreds of actual people in the office)
This is a relatively small company with 2500 employees. Imagine something much, much larger, with offices worldwide, VOIP routing internally, least cost routing of phone calls, etc.