Alcatel-Lucent Enterprise Rainbow

Alcatel-Lucent Enterprise Rainbow combines business communication and collaboration with telephony connections and tools for developers. It is best suited to organizations that want to retain or integrate existing phone systems, or embed communications in their own apps and workflows. Its breadth is compelling, but business subscriptions require custom pricing.

Overview

Rainbow brings messaging, audio and video calls, conferencing, screen and file sharing into one cloud platform. Business calling, team messaging, video meetings and call recording make it relevant to teams looking to consolidate communications, while its connections to on-premises telephony give it a distinct role for organizations not ready to replace existing infrastructure.

It can connect an on-premises system or cloud PBX, including ALE OXO Connect, OmniPCX Enterprise and non-ALE PBXs. Connectors bring communications into Microsoft Teams and Salesforce; APIs and SDKs extend them into apps, websites and workflows. That flexibility is valuable when communications need to work across systems, though it may be more than a team seeking only a basic meeting tool needs.

Key features

Meetings and calling

Audio and video meetings support up to 120 participants, with up to 12 simultaneous video streams. The participant ceiling suits sizeable group meetings, but the stream limit matters when many attendees need to appear on video at once. Rainbow also supports business calling and recording, alongside messaging and file sharing, so it covers more than meetings alone.

Telephony and integrations

Rainbow’s hybrid approach can connect existing on-premises telephony or a cloud PBX. Support for ALE and non-ALE systems gives it a practical advantage for organizations with established phone infrastructure; those without such a requirement may not benefit as much from this flexibility. Microsoft Teams and Salesforce connectors address common integration needs, while APIs and SDKs allow developers to connect communications to other apps and workflows.

Developer platform

The CPaaS offering includes REST APIs, web, iOS, Android and Node.js SDKs, webhooks, bots and a free sandbox. This is a useful toolkit for teams building communications into their products or processes. Usage-based charges apply beyond free allowances, so development and production costs depend on measured use rather than a single predictable subscription.

Security and support

ALE states that Rainbow is ISO 27001 certified and lists European certifications or approvals including ACN, C5, ENS and CSPN. ALE says service connections use transport encryption and audio and video calls use media encryption; it also says the service follows applicable privacy laws including GDPR and CCPA. Rainbow users can turn to ALE’s Help Center for setup, troubleshooting and questions.

Pricing

Rainbow Essential (free service)

The free plan costs nothing and is for individual use. It gives individuals a way to start without a subscription, but its stated audience is not business teams seeking a full organizational deployment; features and availability may change.

Rainbow CPaaS

CPaaS is billed monthly based on the previous month’s measured use. It includes 2,000 administration API calls per month, 5,000 bot/resource API calls per month and 500 WebRTC minutes free. After free allowances, listed charges are 0.005€/$ per API call, 0.001€/$ per API call, 0.005€/$ per minute and 0.1€/$ per GB. This model can suit projects with modest usage or variable demand, but charges vary with consumption and the free allowances set limits before usage becomes billable.

Rainbow business subscriptions

Business subscriptions use custom pricing and are available through sales. They are offered on a flexible subscription basis for on-premises, hybrid, private cloud or public cloud deployments. That choice of deployment can suit organizations with specific infrastructure needs, but buyers cannot assess a published per-seat price before contacting sales.

Platforms

Rainbow supports Android, iOS, macOS, web and Windows, as well as an API. This range covers major desktop and mobile platforms and gives developers an integration route. Linux is not among its stated platforms.

Who it's for

Rainbow is a strong fit for organizations that need collaboration alongside business telephony, especially those retaining an existing PBX, combining cloud and on-premises systems, or integrating communications with Microsoft Teams, Salesforce or custom workflows. Its developer tools also suit teams building communications into their own applications. Individuals can use the free plan, but teams weighing business deployment should account for custom subscription pricing and CPaaS usage charges.

Pros and cons

• Pros: Connects on-premises systems, cloud PBXs and non-ALE PBXs, helping organizations keep existing telephony in place.
• Pros: Combines messaging, calling, meetings, screen and file sharing, and call recording in one platform.
• Pros: Offers connectors, APIs, SDKs, webhooks, bots and a free sandbox for integrations and development.
• Pros: Meetings support up to 120 participants, though only up to 12 simultaneous video streams.
• Cons: Business subscription prices are custom, so costs are not readily comparable before contacting sales.
• Cons: CPaaS charges are tied to measured monthly use, with usage billed beyond the free allowances.
• Cons: The free plan is for individual use, limiting its appeal as a no-cost choice for business teams.

Alternatives

For a broader shortlist, see Unified Communications Software.

• Microsoft Teams is a reasonable alternative for readers who want a free plan with meetings capped at 100 participants and 60 minutes, plus 5 GB of cloud storage.
• 3CX may suit smaller deployments seeking a free license with 10 users and four simultaneous calls; its free license must be renewed manually each year.
• Hubgets offers a free cloud plan for up to 20 users, with 100 contacts per user and 1 GB of storage per user.
• Webex App may fit teams that can work within free meetings capped at 100 attendees and 40 minutes.
• Rainbow is another Rainbow listing with a free plan and trial.
• eztalks is a web-based alternative with a free pay-as-you-go plan.
• Zoom Scheduler is a better fit when the need is limited to a personal booking page and one calendar connection on its basic plan.
• Zoom Workplace is an alternative with a free plan for one user and meetings of up to 100 participants for 40 minutes.

Verdict

Choose Rainbow if your organization needs collaboration tied to existing telephony or wants developer tools to embed communications in its own workflows. Its combination of PBX connectivity, meetings and CPaaS tools is the main reason to choose it. Look elsewhere if a clearly priced business subscription or a simple, low-cost meeting service matters more than integration flexibility.