Hosted PBX,
with AI built in.
Our hosted PBX is CommStack CPS, the Cloud Phone System. It does everything a business phone system should, and its AI scores, summarises and checks recorded, transcribed calls, so managers see how calls are going without listening to them all.
- In the marketHosted PBXCloud phone system · VoIP phone system · UCaaS
- At CommStackCommStack CPSCommStack Cloud Phone System (CPS)
- Your customers seeYour brandYour portal, on your domain, with your sign-in page
AI built in
AI that listens, so managers don't have to.
AI Analysis reviews recorded calls on CommStack CPS. It scores each one, reads how the caller felt, checks it against your customer's own compliance list and raises the calls that need a manager. It works on recorded calls with transcription switched on, and we turn it on for each customer.
AI call analysis (AI feature)
Every analysed call gets a report card.
Each recorded, transcribed call gets a score out of 100, the caller's sentiment, a category from the business's own list, a short summary and the follow-up actions, with an interactive transcript beside the recording.
- Scores, sentiment and categoriesA 0–100 call score, positive, neutral or negative sentiment, and call categories the business chooses.
- Staff ratings and coachingGreeting, professionalism and resolution rated Good, Fair or Poor, with coaching tips tied to moments in the call.
- Transcript beside the recordingClick any line to play the call from that moment, and step through every mention of a trigger word.
- Insights dashboard and Staff MetricsScores, sentiment and categories across the business, and team members compared side by side.
Illustrative example
Compliance and alerts (AI feature)
The calls that need a manager, raised automatically.
Write a compliance checklist in plain English and choose trigger words. The AI checks each analysed call against them, flags what was missed and sends an alert wherever the team already works.
- Plain-English compliance checksEach item is marked met or not met, with the evidence from the call and a 30-day pass rate per item.
- Trigger words and a review queueCalls that mention a trigger word or miss a check are flagged for review, with review notes and who last updated them.
- Alerts where the team worksRules such as "negative sentiment" or "score below 50" send an alert by email, Slack, Microsoft Teams or webhook.
- Straight into the CRMWith HighLevel connected, analysed calls add their summary and follow-up actions to the matching contact.
Illustrative example
More AI on CommStack CPS
Hand calls to an AI agent
With AI Voice Agents, "Send to AI Agent" becomes a destination on numbers, menus, queues and time rules.Call transcription
Timestamped transcripts of recorded calls, emailed after each call and downloadable in the portal.Voicemail transcription (Early access)
Read voicemails in the email and the portal, on our new cloud voicemail as it rolls out.AI assistant connector (Early access)
Ask Claude or another AI assistant about calls, transcripts and extensions, read-only.
What's inside · CommStack CPS
Everything your customers need.
The highlights, grouped the way your customers will use them. The full feature matrix is in the partner pack.
Answer every call
- Auto attendantsMulti-level menus that put callers through to the right place.
- Queues & ring groupsShare calls across a team, in turn or all at once.
- Time conditionsBusiness hours, public holidays and after-hours routing.
- Visual flow builder (Early access)Edit call flows on one visual canvas.
- Paging, parking and morePage groups, call parking, forwarding and SIP URI dialling.
Work from anywhere
- Mobile appsSoftphones for iOS and Android, set up by scanning a QR code.
- Desktop appsSoftphones for Windows and macOS.
- Desk phonesZero-touch provisioning for leading handset brands.
- Hot-deskingStaff sign in to any shared hot-desk phone with their PIN.
Never miss a word
- Voicemail to emailDelivered the moment the caller hangs up.
- Call transcription (AI feature)Timestamped transcripts of recorded calls, by email and in the portal.
- Call recordingSwitch it on for any or every extension, and play calls back in the browser.
Let AI do the listening
- Call scores & sentiment (AI feature)A 0–100 score, the caller's sentiment and a category for every analysed call.
- Summaries & actions (AI feature)A short summary and the follow-up actions the team owns.
- Coaching tips (AI feature)Staff rated on greeting, professionalism and resolution, with tips from the call.
- Compliance checks (AI feature)Your checklist in plain English, checked on every analysed call.
- Alert rules (AI feature)Alerts by email, Slack, Microsoft Teams or webhook when a call needs attention.
- Staff Metrics (AI feature)Calls, talk time and sentiment, team member by team member.
Run the team
- WallboardsLive queue and team stats on any screen, with AI tiles for the day's calls.
- Listen, whisper, bargeCoach agents on live calls.
- Live statusSee who is on a call, ringing, free or on do-not-disturb.
- Reports & heatmapsCall and extension reports, and the busiest hours at a glance.
Connect
- CRM integrationCalls and AI summaries added to contacts in HighLevel, with more CRMs on the way.
- AI assistant connector (AI feature) (Early access)Let assistants such as Claude search call history and transcripts.
For partners
Who buys it, and what you control.
Small and medium businesses moving their phones to the cloud.
Queues, wallboards, AI scoring and coaching for teams that live on the phone.
Compliance checks and flagged-call reviews without listening to every call.
- Per-customer limitsSet extension caps and extension length for each customer.
- AI on requestWe switch AI Analysis on for the customers you choose.
- Your brandTheir portal on your domain, with your colours and sign-in page.
- Usage for billingCall records and summaries to bill however you like.
The fine print, under NDA.
The full feature matrix, supported handsets, interop notes and wholesale pricing for the phone system, transcription and AI Analysis.
Request the partner pack →Interchanges
Pairs well with.
Put an AI receptionist in front of the phone system for overflow and after hours.
Explore AI Voice Agents →Change here forInbound NumbersCommStack NMSPoint 13, 1300 and 1800 numbers at the phone system, routed by time and place.
Explore Inbound Numbers →Change here forSIP Trunking & TeamsCommStack SIP & Teams trunksKeeping their own PBX or moving to Teams? Connect it on our trunks instead.
Explore SIP Trunking & Teams →Partners only
Add Hosted PBX to your range.
Tell us about your customers and we'll send the partner pack for CommStack CPS.