SessionTalk SIP Softphone vs PortSIP ONE

Your business number. Your iPhone. Your way to stay in touch. SessionTalk SIP Softphone brings your compatible SIP account to iPhone and iPad, with a clear dialler, quick access to contacts and calling tools for working from anywhere. Start with SIP voice calling. Unlock the optional one-time Business upgrade for push notifications, video calling, messaging and XMPP, presence, multiple SIP accounts, call transfers, conference merging, call recording and ZRTP audio encryption. The messaging screenshots show features available with this upgrade. CALL WITH CONFIDENCE • Make and receive SIP calls over Wi-Fi and mobile data. • Find people quickly with contacts, favourites and call history. • Use Bluetooth, speakerphone, mute, hold and voicemail notifications. • Enjoy clear audio with Opus, G.722 and G.711 support. MORE WAYS TO KEEP IN TOUCH • Share messages with XMPP chat and compatible SIP messaging services. • Keep conversations organised with contact avatars and group chat rooms. • Share images and files in supported messaging conversations. • Stay reachable with incoming-call push notifications and background XMPP message delivery. TOOLS FOR YOUR WORKDAY • Manage multiple SIP accounts in one app. • Transfer calls, bring people together in conferences and record calls. • Use video calling with a compatible provider. • Support for TLS and SRTP when enabled by your service. • ZRTP audio encryption requires the Business upgrade. Purchase or restore it in Premium Features. • Compare the on-screen security code with the other caller to verify a ZRTP call. • See your call encryption type and ZRTP verification status during calls. • ZRTP requires a compatible peer and media path and supports audio only. Video is unavailable while ZRTP is enabled. BRING YOUR OWN SERVICE SessionTalk is a softphone, not a phone service. A compatible SIP account or PBX is required for calling. XMPP messaging requires a compatible XMPP account. SIP messaging, video, push and other features depend on your provider and configuration. Provider calling charges and mobile data charges may apply. Need help? Contact support@sessiontalk.co.uk.

PortSIP One is a client specifically designed for PortSIP PBX V22 or later versions, exclusively for iPhone. It leverages Wi-Fi or 4G/LTE connections, enabling users to make and receive calls as well as send instant messages. It supports push notifications, allowing users to receive calls and messages even if the app is force-closed. By accessing the iPhone's contact list, PortSIP One offers a user-friendly interface for efficient communication management. It supports multiple calls, enabling users to switch between calls, merge and split calls, and perform attended and unattended transfers. Additionally, it supports video conferencing with MCU (Multipoint Control Unit) support. PortSIP One prioritizes security and incorporates advanced settings for secure call signaling and audio encryption. The application supports high-definition video calls up to 1080P using H.264 and VP8 codecs, ensuring high-quality audio calls. Supported codecs include G.279, G.711a/u, Opus, AMR, AMR-WB, G.722.1, iLBC, GSM, and SPEEX-WB. PortSIP One supports group chats and allows the sending of voice, video, images, files, and more.