Reliable SIP Softphone for Secure VoIP, HD Video, and Seamless Mobile Communication

PortSIP Softphone is a powerful SIP-based softphone for Android that uses Wi-Fi or 4G/LTE to deliver high-quality calls, instant messages, and stable VoIP communication. Designed for productivity and enterprise mobility, it also serves users searching for a secure VoIP calling app for business, a mobile SIP client for enterprises, or an HD video call app.

When paired with PortSIP PBX, the softphone supports push notifications, ensuring you can receive calls and messages even if the app has been force-closed. Using Android’s native contact list, it offers intuitive communication management with smooth handling of multiple calls—including switching, merging, splitting, and both attended and unattended transfers. It also enables video conferencing without requiring MCU support, making it ideal for remote teams and mobile professionals.

PortSIP Softphone integrates advanced security settings to protect call signaling and encrypt audio. It delivers crisp HD audio and supports up to 1080P video using H.264 and VP8 codecs. Available audio codecs include G.279, G.711a/u, Opus, AMR, AMR-WB, G.722.1, iLBC, GSM, and SPEEX-WB. For more information, please visit www.portsip.com.

• SIP-based softphone for Android using Wi-Fi or 4G/LTE • Push notification support when working with PortSIP PBX • Multi-call management with transfers, merge, split, and switching • HD audio and up to 1080P video with H.264 and VP8 • Secure VoIP with encrypted signaling and audio