Apps Like frSIP Mobile (Legacy Support) for iPhone and iPad
Enterprise mobility for office phone
The app enables enterprise mobility by allowing users to pair their mobile phone with office extensions. Users can make and receive calls on their office line from their iOS device when connected to Wifi or 3G/4G LTE.
frSIP Mobile (Legacy Support) screenshots
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.


Ooma Office
Ooma, Inc.
Make and receive calls anywhere
Make and receive calls using a virtual phone number. Manage voicemails, transfer calls, and use conferencing. Set up a virtual receptionist and dial extensions. Handle music-on-hold and control call settings remotely.

Ooma Setup
Ooma, Inc.
Activate Telo, check status, reconfigure
Manage Telo devices by activating new units, reconfiguring Telo Air 2, and checking device status. Enable Phone Genie or Telo 4G remotely. Update settings and monitor adapter status. Sync with account for real-time information.

Grasshopper
Grasshopper
Virtual phone system for small business.
The app provides a virtual phone system for small businesses. It turns a personal smartphone into a call and messaging command center with tools and customizable features.

Google Voice
Google LLC
Call, text, and manage voicemail.
The app provides a phone number for calling, text messaging, and voicemail. It syncs across devices, offers spam filtering, and transcribes voicemails for easy searching and management.


Fuze Mobile
Fuze, Inc.
Connect with voice calls and messages
Stay connected with coworkers, customers, and partners through voice calls, video meetings, and chat messaging. Make calls over Wi-Fi, data, or carrier with video and screen sharing. Dial using 4-digit extensions and join ad hoc conference calls.

RingCentral
RingCentral, Inc
Manage calls, messages, and meetings with AI
Manage business communications with integrated calling, messaging, and meeting features. Transcribe conversations and generate notes using AI. Share files in team chats and receive typo corrections.

newVoice Mobile
New Horizons Communications Corp.
Make and receive calls on the go
Manage office calls remotely using WiFi, LTE, or 3G. Make and receive calls with extension dialing. Transfer, park, and conference calls. Switch between desktop, , and tablet devices during calls.

OnPhone - Second Phone Number
AnyDay Apps Inc.
Manage lines with virtual numbers
Manage multiple lines without an extra SIM card. Create and use local numbers in specified countries. Make calls and send texts globally. Keep real private. Compatible with WhatsApp, Telegram, iMessage, and other services.

4Voice Communicator
Ron Byer
Make and receive calls anywhere
Make and receive calls using a softphone interface. Send and receive XMPP messages. Check call status and transfer calls using shorthand extensions. Access presence information. Connect over WiFi or cellular data.

UniFi Endpoint
Ubiquiti Inc.
Unlock doors with a tap
Manage access with smart door unlocking and one-click WiFi and VPN connections. View live camera feeds for real-time collaboration. Charge electric vehicles and control security features remotely.

Comcast Business
Comcast Cable Communications Management, LLC
Access accounts, manage services, track usage
Manage account details, view upcoming service appointments, pay bills, and check payment history. Track service requests and receive notifications. Access account summaries and contact support directly.

Ooma Enterprise
Ooma, Inc.
Connect and collaborate from anywhere always.
The app allows users to stay connected and responsive while on the go. It provides features for collaboration, call management, and voicemail access, enabling users to manage business calls from anywhere.

magicApp Calling & Messaging
MAGICJACK VOIP SERVICES LLC
Have a second phone number on
Get a second phone number without a SIM card. Use it for personal or business calls and texts in the U.S. and Canada. Switch between numbers quickly. Manage calls and messages through the . Set up a custom phone number.

Vonage Home Extensions
Vonage
Make and receive phone calls
Make and receive phone calls using your number on an iPhone. Answer calls on up to two devices simultaneously. Use Wi-Fi or 3G/4G for connectivity. Receive push notifications for incoming calls.

Phoner: Second Phone Number
Phoner Holdings LLC
Text and call with a
Provides a for texting and calling. Enables private messaging and calls. Includes reverse lookup and anonymous caller identification. Supports international texting and calling with SMS/MMS.

TapeACall: Call Recorder
Mosaic S.r.l.
Record phone calls and transcriptions easily.
The app records incoming and outgoing phone calls. It allows users to transcribe recordings into text and download them to a computer.

Second Phone Number ™ 2nd Line
Pretty Boa Media Ltd
Manage calls and texts with a
Manage a for calls and texts without a new SIM card. Make and receive calls, send and receive messages. Use a separate for business or privacy. View call logs and message history. Switch between numbers easily.

Mattermost
Mattermost, Inc.
Connect to Server and collaborate securely
Securely share messages, files, and links across teams. Create and manage channels for communication. Integrate with workflows and automate tasks. Support audio and screen sharing for collaboration. Manage projects and track progress.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.