Mobile + push for any PBX — in days, not years.
Spanvox adds a native mobile softphone, reliable push for incoming calls and NAT traversal to any existing PBX — no trunk swaps, no dialplan changes, fully under your brand.
Spanvox adds a native mobile softphone to any existing PBX — with reliable push for incoming calls and NAT traversal — no trunk swaps and no dialplan changes. All fully under your brand: name, logo, domain and app‑store listings.
It is built for carriers, VoIP providers and PBX vendors who want to offer a mobile app to their customers — and launch it in days, not months.
Key capabilities
Registration bridge
Dual registration, zero dialplan changes.
Instant push
VoIP push over APNs/FCM for instant ringing.
Native apps
iOS, Android, Windows, Mac with CallKit.
White‑label
Your branding, domains and app‑store listings.
Ideal for
- VoIP providers and carriers (ITSPs)
- PBX vendors and resellers
- Businesses wanting a branded mobile app for extensions
- Moving staff to mobile work without changing systems
Why through Reshetcall?
Frequently asked questions
Does it work with my existing PBX? +
What does white‑label mean? +
How long does deployment take? +
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Let's talk about your business voice
Our experts will get back to you with a tailored recommendation — no commitment.