Fixed Line vs acall
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fixed Line
Transform your smartphone into a mobile extension of your virtual PBX. Make and receive calls worldwide using your landline number, accessing all your PBX features on the go. This app requires an active Fixed Line System account to function.
- Mobile PBX extension
- Worldwide landline calls
- Account management
- Full telephony features
- Contact list integration
- Call journal
- Team view & presence
- Chat and group chat
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The mobile fixed line is a modern communication service from the pioneer and technology leader in the field of unified communication - UNICOPE. Get your telephone system to your phone. With this app you can use your smartphone as a mobile extension of your virtual PBX. Start and receive worldwide calls with your landline number so that you can telephone cost-efficient and mobile with UNICOPE. Take advantage of the functions of your PBX and all the features of Fixed Line. ++ Note: The Fixed Line-app only works in combination with an active account on the Fixed Line System. ++ TOP-Features: Account management - Accounts are automatically created by autoprovisioning - Add, edit and delete accounts All telephony features - Answer, hang up, consultation, hold, transfer, and connect - Phone-conference - Dial by number - Dial from contact list - Dial from call journal - Dial from team view - Dial from chat - Dial with Mobile Network (GSM) - Call mute, switch to speaker - Call signaling by sound and vibration - Number resolution incl. contact image from local contacts - Number resolution from PBX contacts Contact list - Displaying local contacts - Call and email from contact details - Access to server address book - search function Call journal - Display all calls (combined with landline) - Contacts resolution - Call and contact details - Filter for all or only missed calls Team View - Favorites - All employees sorted by departments - call option in detail-view - possibility to send e-mails Messages (Chat) - Conversation overview - Send and receive chat messages - Group Chat Presence - See the presence of all your colleagues General - Copy-Feature for almost data - Diverse DND Modes - GSM Mode - Callthrough-Mode
acall
This mobile SIP client integrates seamlessly with FusionPBX, offering a flexible and powerful communication solution for users on the go. It supports advanced calling features, contact management, and voicemail, ensuring you stay connected anywhere.
- Easy setup via QR code or manual SIP data
- Seamless integration with FusionPBX
- Push notifications and IPv4/IPv6 support
- Call handling: hold, transfer, conference
- Contact and call history management
- Integrated XMPP chat and voicemail
- Fax support (send/receive)
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FusionSIP: Der mobile SIP-Client für FusionPBX FusionSIP ist die ideale mobile Lösung für Nutzer der Open-Source-Telefonanlage FusionPBX. Einfach, flexibel und leistungsstark – mit FusionSIP bleiben Sie auch unterwegs bestens verbunden. Highlights: • Einfache Einrichtung: Konfiguration über QR-Code oder manuelle SIP-Dateneingabe. • Nahtlose Integration: Direkte Anbindung an FusionPBX mit der Softphone-API von EDNT, die alle notwendigen Daten bereitstellt. • Modernste Technologie: Unterstützung von Push-Benachrichtigungen, IPv4 und IPv6. Leistungsstarke Funktionen: • Nebenstellenauswahl • Halten, Makeln, Weiterleiten (unattended & attended) • Konferenzschaltung • BLF- und Statusanzeige der Kollegen • Lokal- und Server-basierendes Öffentliches und privates Telefonbuch • Severbasierende Anrufhistorie, Notizen und Planung (privat & öffentlich) • Integrierter Chat (XMPP Server erforderlich) • FusionPBX Voicemail-Verwaltung • Voller Fax-Support (senden & empfangen) • Rufumleitung und Sperrliste steuern • Anpassbare Codecs, Lautstärkesteuerung & Bluetooth-Support • Benutzerfreundliches Design mit Light & Dark Mode Für Unternehmen & das Büro: FusionSIP ist auch als Desktop-Version erhältlich, inklusive Schnittstellen zu ERP- und CRM-Systemen. Auf Wunsch kann die App individuell gebrandet und an Ihre Bedürfnisse angepasst werden. Für wen ist FusionSIP? FusionSIP wurde speziell für Unternehmen entwickelt, die FusionPBX nutzen, und bietet eine zuverlässige, benutzerfreundliche Lösung für effiziente Kommunikation – überall und jederzeit. Für Reseller: Auf Anfrage kann das Softphone gebrandet und customized und Rabattiert werden. Jetzt herunterladen und die volle Leistung von FusionPBX in Ihrer Hand erleben! Abgrenzung: Der FusionSIP Soft-Client ist ausschließlich in Kombination mit der EDNT SoftPhone API und FusionPBX nutzbar. Für eine generische Softphone-Lösung bietet EDNT das Smart-SIP-Phone, das als SIP-Client sofort mit jeder PBX oder Telefonanlage funktioniert.
Screenshots
Verdict
The clearest difference is review sentiment: Fixed Line at 40% against acall's 0%. Fixed Line also leads on iOS requirement (13.0 vs 15.0). acall's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Fixed Line ships an update every 2 months, acall every 3 weeks. The most recent releases landed on June 24, 2026 and September 24, 2026 respectively.
| Parameter | Fixed Line | acall |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 40.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 34 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | UNICOPE GmbH | EDNT GmbH |
Customer experience
Fixed Line
acall
In-app purchases
Fixed Line
No in-app purchases
acall
No in-app purchases









