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Sip:phone
sipwise.com
What it is
Sip:phone extends Sipwise Class 5 Softswitch and CPBX services to Android and iOS as a mobile extension of an existing business phone system. It is intended as a white-label client for operators using Sipwise NGCP, who can customize its appearance and publish it under their own name in the Apple and Google app stores. Subscribers are managed on Sipwise C5 through interfaces such as its web interface or REST API; users can sign in with a username and password or scan a server-generated QR code. Calling includes audio and video, hold, two simultaneous calls, three-way conferences and blind or attended transfers. The app synchronizes phone contacts with Sipwise C5 subscribers and can show presence for favorite contacts. Administrators can configure whether a desk phone or mobile app rings first, or have either ring alone. Sip:phone requires an existing Sipwise server account and is not intended to support emergency calls. The App Store download is free, but commercial use requires a Sip:Phone App license; pricing is available from Sipwise Sales.
Spec sheet
- Purpose
- Sip:phone extends Sipwise Class 5 Softswitch and CPBX services to Android and iOS devices over broadband data connections.Read 11 Oct 2026 · sipwise.com
- Security
- The app listing describes encrypted SIP communication for secure calls.Read 11 Oct 2026 · play.google.com
- Support
- Sipwise directs buyers to its Sales team for licensing, pricing, deployment, and optional branding or support guidance.Read 11 Oct 2026 · sipwise.com
- Headquarters
- Vienna, AustriaRead 28 Sep 2026 · sipwise.com
- Founded
- 2008Read 28 Sep 2026 · sipwise.com
- Account requirement
- The app requires an existing account on the Sipwise server and does not work properly with arbitrary SIP providers or Sipwise deployments.Read 11 Oct 2026 · play.google.com
- Branding
- Operators can customize the app’s interface and appearance and publish it under their own name in the Apple and Google app stores.Read 11 Oct 2026 · sipwise.com
- Business extension
- The app lets users use mobile devices as extensions of an existing business phone system.Read 11 Oct 2026 · sipwise.com
- Business use
- The app connects mobile devices to an existing core telephony system as extensions of a business phone system.Read 11 Oct 2026 · sipwise.com
- Call controls
- Users can configure subscriber features including do not disturb, caller ID restriction, and ringing policy from the app.Read 11 Oct 2026 · sipwise.com
- Call handling
- Features include audio and video calls, hold, two simultaneous calls, three-way conferences, and blind or attended call transfer.Read 11 Oct 2026 · sipwise.com
- Calling features
- The app supports audio and video calls, hold, two simultaneous calls, three-way conferences, and blind and attended transfer.Read 11 Oct 2026 · sipwise.com
- Company privacy
- Sipwise’s privacy policy says processing of personal data is in line with the GDPR and applicable country-specific data protection regulations.Read 11 Oct 2026 · sipwise.com
- Contacts and presence
- The app synchronizes phone contacts with Sipwise C5 subscribers and can show presence for users’ favorite contacts.Read 11 Oct 2026 · sipwise.com
- Demo
- Sipwise says operators can request a demo app to test its capabilities in a non-production environment.Read 11 Oct 2026 · sipwise.com
- Device ringing
- Operators can set policies for how calls ring on a subscriber’s desk phone and mobile app, including sequential or individual ringing.Read 11 Oct 2026 · sipwise.com
- Emergency calling limit
- The app listing says Sip:phone is not intended or designed to place or support emergency calls and that using it as a default dialer may interfere with emergency dialing.Read 11 Oct 2026 · play.google.com
- Intended customers
- Sipwise describes Sip:phone as a white-label mobile client for operators using its NGCP platform and integrating it into their provisioning and billing workflows.Read 11 Oct 2026 · sipwise.com
- Maker background
- Sipwise says it was founded in 2008 as an engineering company focused on next-generation network communications technology.Read 11 Oct 2026 · sipwise.com
- Network and codecs
- The app negotiates voice quality using codecs ranging from narrow-band to HD for the available access network.Read 11 Oct 2026 · sipwise.com
- Platform compatibility
- The app is available for iOS and Android and integrates with Sipwise C5 and CPBX subscribers.Read 11 Oct 2026 · sipwise.com
- Product limit
- Sipwise’s C5 feature list marks the Sip:phone app as unavailable in Community Edition and says the PRO/Carrier version requires a Sip:Phone App license.Read 11 Oct 2026 · sipwise.com
- Provisioning
- Subscribers are managed and activated on Sipwise C5 through interfaces such as its web interface or REST API, and users can sign in with a username and password or scan a server-generated QR code.Read 11 Oct 2026 · sipwise.com
- Push notifications
- Sipwise C5’s Mobile Push Module uses the smartphone platform’s standard push notification framework to launch the app for incoming calls or notifications while aiming to reduce battery drain.Read 11 Oct 2026 · sipwise.com
- Ringing policy
- Administrators can configure whether the deskphone or mobile app rings first, or configure either device to ring alone.Read 11 Oct 2026 · sipwise.com
- Support and pricing
- Sipwise directs prospective customers to its sales team for pricing, licensing, deployment guidance, and optional support discussions.Read 11 Oct 2026 · sipwise.com
Plans and prices
App Store download Free Apple App Store listing; requires an existing sipwise.com server account Read 11 Oct 2026 · apps.apple.com
sip:phone app Priced on request Commercial app; requires a Sipwise server account; pricing and licensing guidance available from Sipwise Sales Read 11 Oct 2026 · sipwise.com
Strong points and limits
Strong points
- Supports audio and video calls
- Handles conferences, transfers and two simultaneous calls
- Operators can customize and publish the app under their name
- Administrators can configure deskphone and mobile ringing
- Contacts can sync with Sipwise C5 subscribers
Limits
- Requires an existing Sipwise server account
- Does not work properly with arbitrary SIP providers or deployments
- Not intended to support emergency calls
- Commercial use requires a Sip:Phone App license
Who it suits
Sip:phone suits operators using Sipwise NGCP who want a branded mobile extension integrated with their provisioning and billing workflows. It requires an existing Sipwise server account.
Verdict
Sip:phone connects mobile devices to Sipwise business telephony, with operator branding and configurable call handling. It depends on a Sipwise server account, and the listing says it is not for emergency calls.
Where Specifiction places it
- Softphone Software#7 of 338.2
