The amazing team at our portfolio company Twilio has done it again: taken something that was previously complicated and made it super simple. This time they set their sights on business telephone systems (formerly known as PBXs, which – if anyone remembers – is short for Private Branch Exchange). Most legacy PBXs are incredibly hard to program. For instance, the one we have at Union Square Ventures, has some completely proprietary setup which essentially requires us to pay someone every time ...