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CallMeter
What it is
CallMeter is a cloud-based platform for testing SIP systems under load and analyzing VoIP quality. It measures more than 90 real-time metrics per call, second, endpoint, and direction. Load tests can vary endpoint counts, SIP methods, authentication, and call duration, and can capture SIP messages with ladder diagrams. The platform supports multiple audio codecs, including PCMU, PCMA, G.722, Opus, G.726-32, GSM, Speex, AMR, and iLBC, along with H.264, H.265, VP8, and VP9 video. Continuous probes can run as caller or callee on interval or cron schedules, apply quality thresholds, track sliding-window status, and send webhook alerts. Its REST API supports test runs, metric retrieval, probe management, and CI/CD quality gates for GitHub Actions, GitLab CI, and Jenkins. Users can select managed cloud workers or Docker-based workers in private networks. With user-owned workers, SIP signaling and RTP media stay in the customer network while aggregated quality metrics leave it. A seven-day trial requires a valid payment method and converts to a paid subscription unless cancelled. Pricing is on request.
For and against
For
- Measures over 90 real-time quality metrics.
- Supports configurable SIP load tests and message capture.
- REST API supports CI/CD quality gates.
- User-owned workers keep signaling and media in-network.
Against
- Trial requires a valid payment method.
- Trial converts to paid unless cancelled in time.
- Cloud workers reach only public-internet SIP infrastructure.
- Pricing is available on request.
The verdict
CallMeter combines configurable SIP load testing, continuous probes, and quality metrics with API-based automation. Teams with private SIP infrastructure need user-owned workers rather than cloud workers.
Who it suits
CallMeter suits carriers, network engineers, SRE and NOC teams, DevOps teams, MSPs, procurement teams, and telecom managers who need SIP testing or ongoing VoIP monitoring.
Plans and prices
Business
50,000 audio min/month · 12,500 video min/month · 200 concurrent audio streams · 50 concurrent video streams
Read 15 Oct 2026 · callmeter.io
Enterprise
custom or unlimited minutes · custom concurrency · unlimited workers/endpoints/probes · dedicated account management
Read 15 Oct 2026 · callmeter.io
Pro
10,000 audio min/month · 2,500 video min/month · 50 concurrent audio streams · 10 concurrent video streams
Read 15 Oct 2026 · callmeter.io
Starter
2,000 audio min/month · 500 video min/month · 10 concurrent audio streams · 2 concurrent video streams
Read 15 Oct 2026 · callmeter.io
Enterprise / White-Label
multi-tenant · branded · resellable
Read 1 Oct 2026 · callmeter.io
Professional
features, usage limits, and service levels vary
Read 1 Oct 2026 · callmeter.io
On the record
- Alerting
- Probe state changes can send HMAC-SHA256-signed webhooks with retries and automatic disabling after repeated failures.callmeter.io · read 15 Oct 2026
- API and CI/CD
- A REST API provides programmatic test execution, metric retrieval, probe management and CI/CD quality gates for GitHub Actions, GitLab CI and Jenkins.callmeter.io · read 1 Oct 2026
- API authentication
- API keys use the cmk_ prefix, are shown only once, stored hashed and support role-derived permissions plus rotation and revocation.callmeter.io · read 15 Oct 2026
- Billing limitation
- Annual billing is paid upfront, saves approximately 16% versus monthly billing, and unused monthly or annual minute allocations do not roll over.callmeter.io · read 15 Oct 2026
- CI/CD integrations
- Documentation describes quality-gate workflows for GitHub Actions, GitLab CI and Jenkins.callmeter.io · read 15 Oct 2026
- Cloud and on-premise workers
- Customers can use managed regional cloud workers or deploy Docker workers in their own networks; on-premise traffic stays local and only metric summaries are sent to CallMeter.callmeter.io · read 15 Oct 2026
- Cloud-worker limit
- Cloud workers can reach only SIP infrastructure exposed to the public internet, while private infrastructure requires user-owned workers.callmeter.io · read 1 Oct 2026
- Codec coverage
- Documented audio codecs include PCMU, PCMA, G.722, Opus, G.726-32, GSM and Speex; video includes H.264, H.265, VP8 and VP9.callmeter.io · read 15 Oct 2026
- Compliance
- CallMeter states that it processes personal data in accordance with the GDPR and CCPA/CPRA.callmeter.io · read 1 Oct 2026
- Continuous monitoring
- Probes can run continuously with caller and callee modes, interval or cron scheduling, quality thresholds, sliding-window status, and webhook notifications.callmeter.io · read 1 Oct 2026
- Continuous probes
- Scheduled caller and callee probes can run every five minutes or by cron schedule and evaluate configurable quality thresholds.callmeter.io · read 15 Oct 2026
- Data locality
- With user-owned workers, SIP signaling and RTP media remain in the customer network and only aggregated quality metrics leave it.callmeter.io · read 1 Oct 2026
- Documentation depth
- The documentation includes setup guides, worker deployment, API reference, troubleshooting, architecture, codec references and individual pages for more than 90 metrics.callmeter.io · read 15 Oct 2026
- Independent academic mention
- An energy-leak research paper lists the unrelated Android CallMeter project among analyzed applications and links to its GitHub repository.sqlab-sustech.github.io · read 15 Oct 2026
- Independent GitHub name collision
- A separate GitHub project called Call Meter 3G is an Android usage-monitoring app, licensed GPL-3.0 and discontinued in 2018; it is distinct from the SIP platform.github.com · read 15 Oct 2026
- Independent repository activity
- The separate Call Meter 3G repository shows its latest release as version 3.11.15 dated February 12, 2019.github.com · read 15 Oct 2026
- Licence
- The service, APIs and documentation are proprietary software licensed for internal business use during an active subscription.callmeter.io · read 15 Oct 2026
- Limit: AI assistant status
- The feature page marks the read-only local-model AI investigation assistant as coming soon rather than generally available.callmeter.io · read 15 Oct 2026
