Best Sip Phone Apps

SessionTalk SIP Softphone

by SessionTalk Ltd

Free

This mobile SIP client integrates with cloud VoIP solutions, offering advanced call management and high-quality communication. It supports various codecs, multiple accounts, and secure calling features, with some premium functionalities available through in-app purchases.

MyPBX Phone

by The Flat Planet Phone Company, Inc.

Free

This free VoIP application enables high-quality calls between users of the MyPBXManager system. It offers standard telephony features alongside free voice calls for enhanced communication.

Yak - AI SIP Phone

AI, Multi-Account & Video

Free

This app is a full-featured SIP softphone that works with any SIP server. It offers on-device AI for real-time call transcription and analysis, with advanced security and network features. It is not a standalone phone service and requires a SIP account from your provider.

MobileVOIP international calls

Cheap phone calls worldwide

Free

Make affordable national and international calls directly from your iPhone. Save on mobile costs by using this app over various internet connections, including Wi-Fi. Access your contacts and bypass VoIP blockades for seamless communication worldwide.

Linphone

by Belledonne Communications SARL

Free

This open-source application provides free audio and video calls, as well as text messaging, over the internet. It allows users to stay reachable at all times via WiFi or mobile data, even when the app is closed. Enjoy secure communication and the ability to connect with traditional phone lines.

an IP Phone

by Aarenet AG

Free

This application functions as an internet telephony softphone, allowing users to make and receive calls on their iPhone. It connects to a dedicated hosted switching system and supports VoIP calls over 3G and WiFi networks with various codecs.

Castel SIP

by Castel

Free

This application functions as a SIP intercom softphone, enabling users to make and receive audio and video calls from IP intercom stations on their mobile devices. It allows for communication and remote door opening, working through Wi-Fi and cellular data networks.

Mondex Phone

Mondex

Free

This application functions as a SIP-based softphone, enabling users to make and receive calls and instant messages over Wi-Fi or 4G/LTE connections. It provides a mobile solution for VoIP communication.

OneTouchSIPPhone

by Discreet Solutions Pvt Ltd

Free

This application facilitates VOIP audio and video communication using the SIP protocol. It functions as an intercom system for seamless voice and video calls.

Groundwire: VoIP SIP Softphone

Best softphone SIP dialer

$9.99

This SIP softphone client provides high-quality voice and video calls with robust security and customization options. It integrates seamlessly with VoIP providers for personal and professional use, offering features like instant messaging and call transfers.

Bria Mobile: VoIP Softphone

Voice, Video, Chat & Presence

Free

This app provides a secure, high-quality VoIP softphone solution for business communication. It supports voice, video, and chat with features like XMPP and SIP SIMPLE, allowing users to stay connected on the go. It offers advanced call management and security options.

Callmar — SIP Phone & AI Notes

Multi-SIP calls, AI transcript

Free

This app transforms your existing SIP account into a user-friendly iPhone phone experience. It offers seamless call handling, automatic transcription, and AI-powered note-taking, with integrations for popular CRMs. Designed for professionals who rely heavily on phone communication.

JYPhone

by 深圳市君语科技有限公司

Free

This free SIP phone app allows users to configure their own registration server, account details, and network settings. It's designed for developers and operations personnel to test softswitch platforms and debug lines.