Sip:phone vs Siperb Mobile Softphone

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.

Siperb Mobile Softphone puts an office phone extension on an iOS or Android device and connects it to an existing PBX or SIP system. It supports audio and video calls, attended and blind transfers, three-way conferencing, DTMF, call history, CDR, and buddy presence. Its listed end-to-end encryption uses TLS and DTLS-SRTP. When the app is backgrounded, locked, or restarted, Siperb’s proxy uses Apple APNs or Google FCM to wake it and deliver calls. Mobile devices must use Proxy Registration Mode, which is also required for push notifications. The same account works across web, Windows, macOS, Linux, iOS, and Android, sharing contacts, settings, and call history. Supported PBXs include Asterisk, FreePBX, FreeSWITCH, and SIP systems that can provision an extension. Personal is free; Business costs £2.00 per month per domain user, and Business Pro costs £5.00 per month per domain user.