1.0Cloud PBX CIRCLEhttps://circleip.com/en/Chris Chowhttps://circleip.com/en/author/chris-c/rich600338<blockquote class="wp-embedded-content" data-secret="YmQEFw6jSF"><a href="https://circleip.com/en/case-study-parking-doctor/">Case Study – Parking Doctor</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://circleip.com/en/case-study-parking-doctor/embed/#?secret=YmQEFw6jSF" width="600" height="338" title="“Case Study – Parking Doctor” — Cloud PBX CIRCLE" data-secret="YmQEFw6jSF" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://circleip.com/wp-includes/js/wp-embed.min.js </script> https://circleip.com/wp-content/uploads/2026/06/cip-cs-pd4-1.webp800800A cloud PBX case study for main phone numbers. Parking Doctor implemented CIRCLE to coordinate its Tokyo and Kanagawa offices, support calls while staff are out, and operate without publishing company mobile numbers.