AGEphone vs Halcyon

AGEphone is a SIP softphone that connects to a compatible Hikari Denwa home gateway, letting a smartphone serve as an extension of a household phone. The free edition is for personal use and is listed for iOS, Android, and Windows; business use is offered through AGEphone Cloud or AGEphone Business. AGEphone Cloud turns smartphones and PCs into business phone extensions for remote work and larger deployments, with versions for iOS, Android, macOS, and Windows. Listed calling tools include hold, transfer, group calls, call history, missed-call alerts, speed dial, and playback of standard call recordings. Cloud integrations include PHONE APPLI PEOPLE, +Phonebook Cloud, +Reception Cloud, and ACALL, each requiring its own subscription. AGEphone Business supports CRM integration through an API and can be controlled from a web service. AGEphone Cloud lists signaling and audio encryption, single sign-on, remote configuration updates, remote lockout, and disaster recovery across geographically separate SIP servers. The free plan costs 0.00 USD per Free edition, for personal use only.

Halcyon is a free, pre-1.0 Android softphone built on PJSIP and integrated with Android Telecom. It registers with a PBX over UDP, TCP, or TLS, advertises RFC 8599 push parameters, and supports several SIP identities with an account selected for each call. When server-side push is configured, the registrar sends a data-only FCM message before an incoming INVITE to wake the device. Without push, Halcyon uses a foreground SIP service with permanent TLS registration and the associated battery cost. Its Android ConnectionService handles tel: and sip: calls, including from the lock screen, while Telecom-native routing supports Bluetooth headsets and Android Auto. Listed audio codecs are Opus, G.722, AMR-WB, and G.729; video codecs include VP8, VP9, and arm64 MediaCodec H.264. Media uses SRTP encryption, with ZRTP on the roadmap. Android 8.0 or newer is required; signed APKs are available from GitHub Releases.