Side-by-side comparison · 24 data points
Colt offers a one stop shop for all your voice connection needs, globally with full regulatory compliance.
| Colt Cloud SIP for Zoom | Outbox AG - Voice as a Service for Zoom Phone | |
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Outbox AG, the German national telco provider, serving the DACH market. With the easy to use app, calling is implemented within minutes.
| Metric | Colt Cloud SIP for Zoom | Outbox AG - Voice as a Service for Zoom Phone |
|---|---|---|
| Free plan | — | — |
Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort for 7-14 days before committing. The data tables below show the per-feature breakdown — for most teams the deciding factor will be a single integration or workflow detail that's hard to compare from listing pages alone.
This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Zoom App Marketplace listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: Colt Cloud SIP for Zoom audit • Outbox AG - Voice as a Service for Zoom Phone audit
| Keyword | Colt Cloud SIP for Zoom | Outbox AG - Voice as a Service for Zoom Phone |
|---|---|---|
| voice | Not ranked | #9 |
| cloud | #31 | Not ranked |
| zoom phone | Not ranked | #59 |
| phone | Not ranked | #66 |
AppRanks cannot recommend one over the other from published marketplace data: the Zoom App Marketplace does not expose a rating or review base that separates them. Read both apps' detail pages for the feature breakdown, and compare against your own requirements rather than a headline number.
Both apps are one-click installs from the Zoom App Marketplace. AppRanks doesn't measure setup time directly, and the Zoom App Marketplace publishes no review base that would let us infer it for these two — read the recent reviews on each app's detail page for user-reported install experience.
Colt Cloud SIP for Zoom typically suits early-stage and growth-mode teams based on its published review base (0 reviews). Outbox AG - Voice as a Service for Zoom Phone typically suits early-stage and growth-mode teams based on its published review base (0 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.
Migration support varies by app and category. Colt Cloud SIP for Zoom and Outbox AG - Voice as a Service for Zoom Phone both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Outbox AG - Voice as a Service for Zoom Phone" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
