Choosing the right way to monitor and manage Cisco Unified Communications Manager (UCM) isn't a Cisco-only decision anymore. Prime Collaboration Assurance (PCA) — Cisco's own assurance tool — reached end-of-support on October 31, 2024, and neither Real-Time Monitoring Tool (RTMT) nor Control Hub was built to replace it. This guide sets out the criteria that actually matter when evaluating what fills that gap.
This isn't about choosing UCM itself — Cisco's call-control platform is the given. It's about choosing how you monitor, troubleshoot, and assure it once it's live.
Monitoring tells you Cisco UCM is up. Observability tells you why a specific site started dropping calls at 2 p.m., and which device in the path caused it. That distinction matters more than it used to, because most Cisco UCM environments aren't Cisco-only. Session border controllers, gateways, carriers, and — for many service providers — a BroadWorks (BroadSoft) layer sit alongside UCM in the same call path. The right evaluation has to account for all of it, not just the Cisco boxes.
For years, the default answer was "use Cisco's own tools." That answer is incomplete now, for three reasons.
PCA is retired. Cisco announced end-of-sale for Prime Collaboration Assurance and Analytics on October 14, 2021, with end-of-support following on October 31, 2024. Organizations that relied on it for cross-node assurance are covering that ground with something else, whether they've addressed it yet or not.
RTMT remains useful — it just isn't built for this. RTMT is bundled with UCM and gives real, per-node diagnostics: device registration, CPU and memory, call activity, all in real time. What it doesn't do is correlate that data across a multi-vendor call path or hold enough history to show a trend. It's a diagnostic tool, not a fleet-wide observability layer.
Control Hub is strong where it's scoped to reach. Control Hub is Cisco's management console for Webex — cloud-native, and genuinely good at what it covers. It wasn't designed to be the deep, on-premises CUCM assurance layer PCA was, so hybrid and on-prem environments sit outside its reach.
Put together: no single Cisco tool now covers on-prem, hybrid, and multi-vendor visibility end to end. That's the gap this evaluation is actually about.
Enterprises still running on-premises or hybrid CUCM after PCA's retirement are the most immediate case — the tool they may have depended on is gone, whether or not a replacement has been evaluated yet.
Teams mid-upgrade or mid-migration — moving to a newer UCM release, a hybrid calling model, or Cisco's Hosted Collaboration Solution — are a close second. Monitoring gaps tend to surface during a migration, not after it, which makes this the natural moment to re-evaluate rather than carry an old assumption into a new architecture.
UC service providers running Cisco UCM alongside BroadWorks or BroadSoft-based platforms for their own customers need visibility that spans both, per tenant — not a view that stops at the Cisco boundary while a customer's issue is actually somewhere else in the stack.
One group this isn't for: organizations running Webex-only, with no on-premises or hybrid CUCM footprint. Control Hub genuinely fits that narrower case, and adding a third-party layer on top of it usually isn't solving a real gap.
A real evaluation goes beyond "does it support Cisco." Six criteria separate a genuine assurance layer from a dashboard that just mirrors device status:
The table below sets those six criteria against what Cisco's own tools cover today and what a purpose-built, multi-vendor observability approach adds. For the fuller breakdown of Cisco PCA and Control Hub against IR Collaborate, see our dedicated comparison.
| Criteria | Cisco native tools (RTMT / Control Hub) | Purpose-built third-party observability |
|---|---|---|
| Multi-vendor, multi-domain coverage | Scoped to Cisco devices and, for Control Hub, Webex cloud services | Extends across SBCs, gateways, carriers, and non-Cisco UC platforms |
| Voice-quality / call-experience visibility | Per-node call metrics available in RTMT | Correlates voice-quality metrics to the specific call and device path |
| Deployment flexibility | RTMT: on-premises only. Control Hub: Webex cloud only | On-premises, hybrid, and cloud, including HCS, in one view |
| Service-provider multi-tenancy | Not a native design goal for either tool | Built for per-tenant visibility at scale |
| Root cause vs. alerting | Strong real-time diagnostics, limited cross-domain correlation | Correlates across layers to identify root cause |
| Retention / historical trending | Limited by tool and deployment | Built for longer-term trend analysis |
Neither RTMT nor Control Hub is being replaced by this comparison — RTMT remains genuinely useful for real-time, per-node diagnostics, and Control Hub remains the right tool for managing Webex itself. The question this evaluation answers is what wraps around them once the environment is hybrid, multi-vendor, or business-critical enough that visibility can't stop at the Cisco boundary.
IR Collaborate monitors and troubleshoots Cisco UCM alongside Expressway/VCS, Unified Border Element (CUBE), Meeting Server (CMS), Contact Center (UCCX and UCCE), and video endpoints — plus the rest of a multi-vendor UC estate — across on-premises, hybrid, and cloud deployments. For service providers, that means one place to see call quality and root cause per tenant, not per platform. For enterprise IT teams mid-upgrade, it means the monitoring layer doesn't have to be rebuilt every time the architecture changes underneath it.
Is Cisco PCA still supported?
No. Cisco announced end-of-sale for Prime Collaboration Assurance and Analytics on October 14, 2021, with end-of-support on October 31, 2024. It's fully retired, with no direct on-premises replacement from Cisco.
What replaced Cisco Prime Collaboration Assurance?
Cisco hasn't shipped a direct on-premises equivalent. Control Hub covers Webex cloud management, not the same on-premises assurance ground PCA covered — which is why this evaluation matters for hybrid and on-prem environments.
Does Control Hub monitor on-premises Cisco UCM?
Control Hub is built for Webex cloud services. It wasn't designed to be the deep on-premises CUCM monitoring layer PCA was.
What's the difference between RTMT and a full observability platform?
RTMT gives real-time, per-node diagnostics built into UCM itself. A full observability platform correlates that data with the rest of the network and other vendors' equipment to identify root cause faster, across more than one device at a time.
Do I need a third-party tool if I only run Cisco Webex?
Not necessarily. Control Hub is designed for Webex-native environments. This evaluation matters most once on-premises, hybrid, or multi-vendor components are part of the picture.
What should service providers running Cisco UCM and BroadWorks or BroadSoft look for?
Visibility that spans both platforms per tenant, not per device, so operations and customer success teams see the same picture the customer is experiencing.
Does upgrading Cisco UCM change monitoring requirements?
Often, yes. An upgrade or migration — to HCS or a newer UCM release — is a natural point to re-evaluate, since monitoring gaps tend to surface mid-migration rather than after it.
Where does IR Collaborate fit?
IR Collaborate adds multi-vendor, cross-domain observability around Cisco UCM, covering the layer Cisco's own native tools aren't scoped to reach.
The real choice here was never RTMT versus Control Hub versus PCA. It's whether visibility stops at the Cisco boundary or extends across the whole estate — network, carriers, and every vendor in the call path. For any organization running Cisco UCM on-premises, in hybrid, or through a service provider, that's the question worth answering before the next outage forces it.
See how IR Collaborate extends visibility across your Cisco UCM environment, or request a demo to walk through your specific setup.