# PortSIP UC — SIP Softphone,Voice,Video,IM > SIP softphone for voice, video, and instant messaging on iPhone. (iPhone/iPad app by PortSIP Solutions, Inc..) - Source: https://appshunter.io/ios/app/portsip-uc/id426903818 (this page in markdown: same URL + `.md`) - Developer: [PortSIP Solutions, Inc.](https://appshunter.io/developer/426903821) - Category: Social Networking, Utilities - Price: Free - Rating: 4.10/5 from 93 App Store ratings · 65 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 52 MB - Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Polish, Brazilian Portuguese, Russian, Chinese (Simplified, China) and 1 more - Released: 2011-08-22 - Data updated: 2026-08-26 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/portsip-uc/id426903818/reviews.md ## What is PortSIP UC? PortSIP Softphone is a SIP-based softphone application designed for iPhone. It utilizes Wi-Fi or 4G/LTE connections to enable users to make and receive calls and instant messages. When integrated with PortSIP PBX, PortSIP Softphone supports push notifications, allowing users to receive calls and messages even when the application is force terminated. With access to the iPhone's contact list, PortSIP Softphone 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 conferences with MCU (Multipoint Control Unit) support. PortSIP Softphone prioritizes security and incorporates advanced settings for secure call signaling and audio encryption. The application supports high-definition video calls up to 1080P with H.264 and VP8 codecs and ensures high-quality audio calls. The supported codecs include G.279, G.711a/u, Opus, AMR, AMR-WB, G.722.1, iLBC, GSM, and SPEEX-WB. ## Key features - SIP-based calling and messaging - Push notifications with PBX integration - Contact list integration - Multi-call management - Video conferencing - Secure call signaling and audio encryption - HD video calls up to 1080P ## Recent user reviews (10 of 65) All indexed reviews: https://appshunter.io/ios/app/portsip-uc/id426903818/reviews.md ### 3/5 — Работает плохо *2026-02-02* Приложение работает плохо. Работает медленно. Адресную книгу то видит то не видит. Сохранение номеров какое то странное. Номер сохраняешь, но когда он звонит, не видно что он сохранен. Можно один и тот же номер сохранять несколько раз и не понятно сохраняется номер или нет. Исходящий вызов только со второго раза. ### 1/5 — Desserviço *2025-12-19* O app parece que foi feito pelo próprio capeta, eu nunca vi algo tão ruim e instável na minha vida. Deveriam ter vergonha de colocar isso na loja ### 5/5 — Отлично работает , в фоне не работает на айфонах ни одно приложение, это политика IOS *2025-11-25* Очень надежно работает одно из самых простых подключений , имею собственную сеть sip , много перепробовал , это самое простое и надежное , сет murmur , кому интересно можете попробовать, все бесплатно , в IOS в фоне работает , но в андроидах в фоне работает и не засыпает , или очень редко , зависит от модели телефона , я доволен !!! ### 1/5 — Не работает в фоне *2025-11-18* Не работает в фоне ### 1/5 — Problema com o microfone *2025-08-14* Parceiro, ao instalar o app ele não solicita acesso o microfone do iPhone, o que impossibilita o uso do app, pode verificar ? ### 1/5 — Não chama nunca *2025-07-09* Pode configurar de tudo q é jeito q o aplicativo não chama quando te ligam ### 1/5 — почему бесконечно грузит? *2025-07-02* вообще не заходит не как ### 1/5 — Won’t let me sign in *2025-06-18* garbage app won’t let me sign in ### 1/5 — Отвратительное приложение *2025-05-27* Постоянные глюки. Либо не доходят звонки, либо приложение уходит в спящий режим и они опять не доходят. Пользоваться категорически неудобно. Чтобы звонок дошел, то нужно постоянно держать приложение открытым со выключенным экраном. Да и то не всегда помогает. Поддержка постоянно разводит руками и дает рекомендации, которые не работают. ### 5/5 — Simple and works. *2025-05-24* Works great as a soft phone for VoIP.ms. I’ll see how it does in the long run. ## Frequently asked questions about PortSIP UC ### What does PortSIP UC do? PortSIP UC is a SIP-based softphone application for iPhone that enables users to make and receive voice calls, video calls, and send instant messages. It uses Wi-Fi or 4G/LTE connections for communication and can integrate with PortSIP PBX for enhanced features like push notifications. ### What are the key features of PortSIP UC? Key features include SIP-based calling and messaging, push notifications when integrated with PortSIP PBX, access to the iPhone's contact list, advanced multi-call management (switching, merging, splitting, transfers), video conferencing with MCU support, and secure call signaling and audio encryption. It also supports HD video up to 1080P. ### Is PortSIP UC free to use? Based on the provided information, the application is free to use. There are no mentions of subscription fees, in-app purchases, or advertisements. ### What devices is PortSIP UC compatible with? The application is designed for iPhone devices. It utilizes the iPhone's operating system and features, such as its contact list and network connections (Wi-Fi or 4G/LTE). ### How does PortSIP UC handle calls and messages? It handles calls and messages using the SIP protocol over Wi-Fi or cellular data. When integrated with PortSIP PBX, it supports push notifications, ensuring you receive calls and messages even when the app is not actively running in the foreground. It also offers robust call management features for multiple active calls. ## Version history (last 5 releases) ### 12.4.1 — 2024-08-01 modify some wrong description ### 12.4 — 2024-07-18 Update SDK version to 19.4 Bug fixes and improvements. ### 12.3.1 — 2024-07-05 1:improved stability 2:Add French resources ### 12.3.0 — 2024-03-11 improved stability ### 12.3 — 2024-03-11 improved stability ## Apps similar to PortSIP UC | App | Rating | Price | Category | | --- | --- | --- | --- | | [SimpleX Chat: secure messenger](https://appshunter.io/ios/app/simplex-chat-secure-messenger/id1605771084) | 4.3 (263) | Free | Social Networking | | [Parallel App ~ Dual Accounts](https://appshunter.io/ios/app/parallel-app-dual-accounts/id6471808799) | 4.6 (2,254) | Free | Social Networking | | [Super clone: Multiple Accounts](https://appshunter.io/ios/app/super-clone-multiple-accounts/id6444395256) | 4.6 (2,216) | Free | Social Networking | | [Grandstream Wave](https://appshunter.io/ios/app/grandstream-wave/id1523254549) | 2.6 (50) | Free | Social Networking | | [Linphone](https://appshunter.io/ios/app/linphone/id360065638) | 2.6 (8) | Free | Social Networking | | [SessionTalk SIP Softphone](https://appshunter.io/ios/app/sessiontalk-sip-softphone/id362501443) | 4.4 (1,002) | Free | Social Networking | ## More apps by PortSIP Solutions, Inc. - [1-Talk](https://appshunter.io/ios/app/1-talk/id639536802) - [IPTalker](https://appshunter.io/ios/app/iptalker/id666238043) - [VOM](https://appshunter.io/ios/app/vom/id1273960465) - [WIFI-TV](https://appshunter.io/ios/app/wifi-tv/id1274348695) - [Mondex Phone](https://appshunter.io/ios/app/mondex-phone/id1464834278) All apps by PortSIP Solutions, Inc.: https://appshunter.io/developer/426903821 ## Related topics [portsip](https://appshunter.io/ios/topics/portsip) · [portsip uc](https://appshunter.io/ios/topics/portsip-uc) · [portsip softphone](https://appshunter.io/ios/topics/portsip-softphone) · [sip](https://appshunter.io/ios/topics/sip) · [sip client](https://appshunter.io/ios/topics/sip-client) · [SIP App](https://appshunter.io/ios/topics/sip-app) · [zoiper lite](https://appshunter.io/ios/topics/zoiper-lite) · [sip phone](https://appshunter.io/ios/topics/sip-phone) · [zoiper](https://appshunter.io/ios/topics/zoiper) · [session talk sip](https://appshunter.io/ios/topics/session-talk-sip) · [zoiper free voip soft phone](https://appshunter.io/ios/topics/zoiper-free-voip-soft-phone) · [softphone](https://appshunter.io/ios/topics/softphone) · [sessiontalk sip softphone](https://appshunter.io/ios/topics/sessiontalk-sip-softphone) · [sip communication](https://appshunter.io/ios/topics/sip-communication) · [session talk](https://appshunter.io/ios/topics/session-talk) · [sip softphone](https://appshunter.io/ios/topics/sip-softphone) · [acrobits](https://appshunter.io/ios/topics/acrobits) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*