6 Best Sip Phone App For iPhone

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Download the Best Sip Phone App For iPhone on the Apple Store by clicking this Button

If you are looking for the Best Sip Phone App For iPhone to download for free, look no further.

Our expert panel of reviewers has tested dozens of apps and we have compiled a list of the 6 Best Sip Phone App For iPhone that passed our tests.

Check out our list of the 6 Best Sip Phone App For iPhone, tried and tested by our expert reviewers.

6 Best Sip Phone App For iPhone

1. Acrobits Groundwire

Download the App on the Apple Store by clicking this Button
“Designed from the ground up with the mobile user in mind, Groundwire is the first mobile SIP Client capable of replacing your desktop phone.  Combining all the features business users need (see below) with intuitive features created with the mobile user specifically in mind (number rewriting, address book matching and more), Groundwire will quickly have you wondering how you survived without it before.

Check out the tutorials and knowledgeable articles at the links below:

https://www.acrobits.net/hesk/knowledgebase.php

For the list of providers and VoIP services tested with Groundwire, see http://www.acrobits.cz/about-us/partners#tab_verified-voip-operators

And check out https://www.acrobits.net/products/retail#tab_softphone for a side by side comparison of the most popular features of Acrobits Softphone and Groundwire.

*CallKit support!
*Push Notifications for long battery life
*Video Calling – H263, H264 and VP8 codecs
*Multi line
*SIP SIMPLE messaging, with picture, video and other attachments, typing and delivery notifications
*Call conferencing
*Transfer and attended transfer
*Call waiting
*Voicemail Notification and programmable Voicemail dialer
*ZRTP support (through in app purchase), the latest in secure calling for SIP
*Busy Lamp Field
*backgrounding support
*Call recording (only available for SIP calls, will not record calls from your GSM line)
*Bluetooth headset support
*Customizable ringtones
*Quickdial, your favorite contacts only one tap away
*Number rewriting, edit your existing contacts for SIP dialing without creating additional entries and program specific number to be dialed through specific accounts automatically
*in-call quality indicator, see network quality, packet loss and jitter
*Background noise suppression
*Quick import of accounts from major VoIP providers including sipgate, callcentric, voipcheap and many more.
*TLS support for encrypted SIP
*SIP Proxy Support, VPN Support (configure VPN in iOS settings)
*Excellent sound quality, supports OPUS, G.722, G.711, iLBC and GSM.  Make an in app purchase to add G.729 for great performance over 3G networks
*SIP Log for troubleshooting

If you have an issue with Groundwire, please contact our support even if you leave a review stating the problem.  Groundwire is highly configurable so problems that seem insurmountable may just require a couple of adjustments to the settings.    

Groundwire fans, please rate Groundwire or leave a review.  

***NOTES – IMPORTANT, PLEASE READ***

SIP – Groundwire is a SIP Client, not a VoIP service. You must have service with a VoIP provider or PBX that supports use on a standard SIP client to use it.

VoIP over 3G – Be aware that some mobile network operators prohibit or restrict the use of VoIP over their network.  They may prohibit the use of VoIP or impose additional fees and/or charges when using VoIP over their network.  By using Groundwire over 3G, you agree to abide by any restrictions your cellular carrier imposes and agree that Acrobits will not be held responsible for any charges, fees or liability imposed by your carrier for using Groundwire over their 3G network.”

2. Acrobits Softphone

Download the App on the Apple Store by clicking this Button
“Make voice and video calls easier—and more securely—with a SIP softphone app that supports rich messaging, push notifications, HD voice and video, and more.

Acrobits Softphone is preconfigured to support many of the most popular providers. Download Acrobits Softphone today to stay connected with friends, family, and coworkers using an app that is built to deliver high-quality communications, a more secure experience, and an intuitive UI.

What can Acrobits Softphone do for you?
High-quality audio. Experience crystal clear communications. We support Opus, G.722, G.729, G.711, iLBC, and GSM audio formats.
HD-quality video. Communicate in up to 720p HD. Our app supports both H.264 and VP8.
SMS and rich messaging. Quickly send SMS or rich messages to your contacts through our app’s built-in messaging platform.
Military-grade encryption. Keep your data safe with our private encryption stack that uses SRTP, ZRTP, and TLS.
Reduce your battery drain. Acrobits Softphone supports push notifications, making it easier for you to stay notified without draining your device’s battery.
Seamless call transition. Make calls using WiFi or your data plan. Acrobits Softphone offers seamless transition during the critical handover stage.
Customize your experience. Acrobits Softphone is highly customizable. Customize your SIP settings, the UI, ringtones, and more.
5G-friendly. Take advantage of all the benefits 5G has to offer with an SIP softphone that’s built for 5G.
Multi-device compatibility. Acrobits Softphone is compatible with most Apple smartphones and tablets.
No hidden fees. Don’t worry about hidden fees or subscriptions. Acrobits Softphone carries a one-time fee.
Lifetime support and updates. Each license of Acrobits Softphone comes complete with lifetime support and unlimited updates.

“The best sip app for iPhone!”

”This is a truly great SIP/VOIP client. Easy to configure, multiple accounts, superior audio quality, mic boost, volume boost…it’s got it all.”

“Thanks to this app, I got VOIP working perfectly (…) sound quality is way better than I was expecting. The Softphone is entirely intuitive”

Are you a business user? Try our business-focused app Groundwire for enhanced work from home features.”

3. Bria Mobile: VoIP Softphone

Download the App on the Apple Store by clicking this Button
“Bria Mobile – Your VoIP SIP Softphone for Everyday Business Communication.

Stay connected wherever you go, leveraging your call server or VoIP service. Includes HD audio and video support, along with XMPP & SIP SIMPLE support.

Subscription not charged if cancelled within trial period. Please note, in-app subscription purchases are not supported through Family Sharing. Payment will be charged to iTunes Account at confirmation of purchase.

Additional Subscription Information:
• Subscriptions will be automatically renewed within 24-hours prior to following subscription period. Please check user’s Account Setting to disable auto-renewal.
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.

HIGHLIGHTS
• Highly secure, SIP-based softphone with exceptional voice quality
• Pre-defined VoIP provider list available when adding new accounts
• Multitasking support for background operation, such as fielding incoming calls while using other applications and Push Support
• Audio codecs including G.722, Opus & SILK + G.711a/u, G.729
• Video in 720p HD on iPhone 5 or later
• Supported accessories include headphones, AirPods & other Bluetooth™ devices
• Available in the following languages: English, Chinese, French, Japanese, Portuguese, Russian, German & Spanish.
• IPv4/IPv6 support

STANDARD PHONE FEATURES
• Messaging & Presence – XMPP & SIP SIMPLE support
• Support for up to 25 accounts on any SIP-compliant server
• Contact List & Favorites leveraging the device’s native contact directory
• Call display & voicemail indicator
• Speaker, mute & hold functions
• Call history of received, missed & dialed calls
• Call recording
• Ringtones & contact avatars
• Dial plan support
• Multiple call support – swap between 2 active calls, merge/split calls, transfer calls
• Support for DTMF to enter numbers to use an auto attendant
• VPN support
• Advanced settings that enable users to control network traversal and media options
• Security and encryption via TLS & SRTP
• DNS SRV record lookups & call quality statistics

Terms of use: http://www.counterpath.com/terms/
Privacy Policy: http://www.counterpath.com/privacy/

IMPORTANT VOIP OVER MOBILE/CELLULAR DATA NOTICE
Some mobile network operators may prohibit or restrict the use of VoIP functionality over their network and may also impose additional fees, or other charges in connection with VoIP. You agree to learn and abide by your cellular carrier’s network restrictions. CounterPath Corporation will not be held liable for any charges, fees or liability imposed by your carrier for use of VoIP over Mobile/Cellular Data.

Emergency Calls
CounterPath’s Bria mobile products provide handling designed to redirect emergency calls to the Native Cellular Dialer when possible on a best reasonable commercial efforts basis, however this functionality is also dependent on the operating system of the mobile phone which is outside of our control and subject to change at any time. As a result, the official position of CounterPath is that CounterPath’s Bria product is not intended, designed, or fit for placing, carrying or supporting Emergency Calls. CounterPath will not be liable for any costs or damages arising either directly or indirectly from the use of the software for Emergency Calls.”

4. SessionTalk SIP Softphone

Download the App on the Apple Store by clicking this Button
“SessionTalk Softphone is a feature rich mobile SIP client for your Cloud VoIP Telephony solution.

With a superbly designed and intuitive user interface, the softphone offers easy set up with lots of preconfigured VoIP providers built in and smart call management features. Enjoy high quality enterprise communication features with zero effect on battery life.

Please note some mobile network operators prohibit or restrict the use of VoIP over their networks and may impose additional fees or other charges. Please check with your operator before making calls over LTE networks.

SessionTalk Softphone features:

– CallKit Support
– Supports making SIP VoIP calls over LTE and WiFi
– Incoming Calls via Push Notifications
– Video Calls with H264 &VP8 codec
– SMS Messaging ( SIP SIMPLE support required )
– Multiple accounts – simultaneously registered. Receive calls on any registered account.
– Set call background image to contact photo or custom image
– Dial Plan
– Dual Line
– Swap between 2 active calls
– Conference – Merge and Split
– Attended and Unattended Transfer
– TLS Encryption with optional certificate verification
– SRTP secure calls
– Bluetooth Support
– Call Recording
– Quick import of accounts from major VoIP providers
– Excellent audio quality
– Opus, G722, G711 ,GSM and iLBC codec support
– G729 Annex A available as Premium Feature
– Speakerphone, Mute and Hold
– DTMF Support , RFC2833 and Inband
– Ringtones
– Contacts integration, add or edit contacts from within the app
– Dial from Call History and Favorites
– Voicemail Notifications

If you need technical support please email support@sessiontalk.co.uk

Premium Features:

Push Notifications
Video Calls
SMS ( SIP SIMPLE support only)
Multiple SIP Accounts
Call Transfer
Dial Plan
Call Recording
G729 Audio codec”

5. sip:phone

Download the App on the Apple Store by clicking this Button
“sip:phone is a Unified Communication Client brought to you by Sipwise GmbH, the open source soft-switch vendor.

IMPORTANT NOTE:
sip:phone requires an existing account on any Sipwise-based system (e.g. a Sipwise sip:provider CE, sip:provider PRO or sip:carrier system on version 3.x or higher) and does NOT provide a VoIP service on its own.

HIGHLIGHTS:
• Secure VoIP softphone for voice, presence and instant messaging.
• Auto-Discovery of contacts in your address book.
• Encrypted SIP and XMPP communication for secure calls and messaging.
• Recent Calls List
• Recent Chat List
• Avatar support in Chat and Contact List
• Put calls on Mute and Speaker Phone
• DNS SRV Support for SIP and XMPP
• DTMF Support for operating voice menus an auto attendants

IMPORTANT VOIP OVER MOBILE/CELLULAR DATA NOTICE:
Some mobile network operators may prohibit or restrict the use of VoIP functionality over their network and may also impose additional fees, or other charges in connection with VoIP. You agree to learn and abide by your cellular carrier’s network restrictions. Sipwise GmbH will not be held liable for any charges, fees or liability imposed by your carrier for use of VoIP over Mobile/Cellular Data.

EMERGENCY CALLS:
The sip:phone application delivers calls on a best-effort basis to the service you are signed up with. As a consequence, the sip:phone application is not intended, designed, or fit for placing, carrying or supporting Emergency Calls. Sipwise GmbH will not be liable for any costs or damages arising either directly or indirectly from the use of the software for Emergency Calls. Using sip:phone as a default dialer may interfere with dialing emergency services.”

6. Zoiper Lite voip soft phone

Download the App on the Apple Store by clicking this Button
“Zoiper is an easy to use sip video softphone, with excellent voice quality and easy to setup.

Feel free to contact us with support questions or for more information on whitelabel solutions.

Connect Zoiper to your PBX or voip provider and make crystal clear, echo free, voice or video calls through wireless and 3g.

Zoiper works flawlessly in the background and is optimized to use as little battery as possible while ensuring the reliability of incoming calls.

Use bluetooth to pair the Zoiper SIP softphone to your car audio system or your headset and enjoy voip on the go.

This softphone comes with a built in QR code scanner for 1 click account configurations. Never type account details and credentials again!

Try it for 7 days free! Subscription is not charged if cancelled within trial period. Please note that the in-app subscription purchases are not supported through Family Sharing.

1-Year Subscription: $9.99, 1 month $0.99 USD, automatically renewed until cancelled by the user.
Additional Subscription Information:
• Subscriptions will be automatically renewed within 24-hours prior to following subscription period. Please check user’s Account Setting to disable the auto-renewal.

Features:

- Call waiting
– Call transfer
– Call statistics


– Call recording*
– Conference calls*
– Instant messaging (SIP simple)
– Presence (SIP simple)*

Supported codecs:
– g.711 (ulaw/alaw)
– Speex
– iLBC
– gsm
– g.729*
– vp8
– h264*

* The 3rd party patented codecs h264 and g729 are available as optional in app purchase.

* The conference calls, call transfer, presence and call recording are available as optional in app purchase.

Zoiper is also available as an OEM / whitelabel solution license and can be customized on demand.

Be sure to configure ios to allow notifications for incoming calls for Zoiper and provide access to the contact list.

For more information on Zoiper’s features, please visit: https://www.zoiper.com/en/products/zoiperios
Terms of use: https://www.zoiper.com/en/zoiper-general-terms
Privacy Policy: https://www.zoiper.com/en/zoiper-privacy-policy”