---
title: "What softphone mobile app works best with Metaswitch?"
topic: "White-Label / Wholesale"
updated: 2026-06-30
canonical: https://acrobits.net/resources/knowledge-base/what-softphone-mobile-app-works-best-with-metaswitch/
summary: "Cloud Softphone by Acrobits is the best mobile app for Metaswitch operators. It provides native Metaswitch integration, SIPIS push infrastructure for reliable background calling, and full brand ownership independent of the MaX UC / Alianza / Bria roadmap. Most operators launch in 2-4 weeks."
---

# What softphone mobile app works best with Metaswitch?

> Cloud Softphone by Acrobits is the best mobile app for Metaswitch operators. It provides native Metaswitch integration, SIPIS push infrastructure for reliable background calling, and full brand ownership independent of the MaX UC / Alianza / Bria roadmap. Most operators launch in 2-4 weeks.

# What Softphone Mobile App Works Best with Metaswitch?

For most Metaswitch operators, **Cloud Softphone** by Acrobits is the best mobile app: a branded iOS and Android softphone you own and control, rather than a vendor app tied to someone else's roadmap. Since the Alianza acquisition, that ownership question is what separates the options.

## Why the choice changed: MaX UC, Bria, and Alianza

Metaswitch's own mobile app, MaX UC, is now controlled by [Alianza after its acquisition of Metaswitch](/blog/tech/alianza-acquired-metaswitch-what-operators-need-to-know/), and operators on MaX UC are being pushed forward to Bria as its replacement.

Either way, the subscriber app and its roadmap sit with the switch vendor, not with the operator. Cloud Softphone gives operators an independent, branded alternative: their own app in the App Store, on their own timeline.

## How to choose a Metaswitch mobile app

These are the criteria that matter most when you standardize on one app, and how Cloud Softphone measures up:

  - **Brand ownership.** The app lists under your Communications Service Provider name, not Acrobits and not Alianza. Logos, colors, feature set, and store listing are yours.

  - **Roadmap independence.** Your release schedule and feature priorities are not tied to a switch vendor's plans for its own app.

  - **Switch-agnostic.** Cloud Softphone works with any SIP-compliant softswitch, so a future backend change does not force a new subscriber app.

  - **Reliable mobile delivery.** Background calling runs on [SIPIS](/voip-glossary/sipis/), the push infrastructure Acrobits has run since 2009, so calls arrive on iOS and Android even when the app is backgrounded.

  - **Native Metaswitch integration.** Presence, voicemail, and call features work out of the box, with no custom integration project.

## Launch Timeline

Most operators complete branding, configuration, and app store submission in **2–4 weeks**. Acrobits handles the submission process end to end.

For the technical compatibility details such as SIP registration, supported features, and desktop plus mobile, see [what softphone works with Metaswitch](/resources/knowledge-base/what-softphone-works-with-metaswitch/).

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