Channel PBX is an Android SIP client designed for secure and reliable business voice communications. Channel PBX supports standard SIP accounts, multiple extensions, and call transfer workflows while minimizing battery use.

Overview

Channel PBX connects to existing PBX servers and provides a clean interface for calls, voicemail, and extension management. It includes configurable codecs and network settings to adapt to different environments and carriers.

Key features

• SIP account support - Register multiple SIP accounts and switch between extensions.
• Call handling - Hold, transfer, and conference calls with basic call controls.
• Security - TLS and SRTP options for encrypted signaling and media.
• Audio optimization - Select codecs and enable jitter buffer and echo cancellation.
• Network flexibility - NAT traversal options and keepalive settings for unstable networks.

Requirements and notes

Channel PBX requires a SIP-compatible PBX or SIP provider and Android OS permissions for microphone and network access. It does not include a PBX server; administrators must supply server details. For best results, confirm your provider's recommended settings before connecting.