iTeleCenter vs Call One UC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iTeleCenter
This app transforms your mobile phone into a virtual office, allowing you to manage business calls, voicemails, and faxes. It keeps your personal number private while enabling professional communication and message management.
- Use virtual number as caller ID
- Return calls from messages
- Manage business messages and faxes
- Receive push notifications
- Read voicemails
- View faxes
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Download the iTeleCenter app for iPhone – the mobile companion to your iTeleCenter virtual phone system. Turns your mobile phone into your mobile office – take calls, read your voicemail, view faxes – make calls via iTeleCenter and keep your mobile number private. Use the iTeleCenter app on your iPhone to: -Make calls using your iTeleCenter number as caller ID – keep your personal number private! -Return calls just by tapping the call back button on a message -Keep your business messages and faxes separate from your personal ones -Receive Push notifications for messages and faxes -Read your Voicemail -Receive and View Faxes Get the iTeleCenter Virtual Phone System that includes: -Local, Vanity, 1 800 or other Toll Free Numbers -Multiple Extensions -Call Forwarding -Call Transfer -Call Recording -Send/Receive Faxes Online -Auto-Attendant -Music on hold -Instant Message/Fax Notification -Read your Voicemail -Professionally Recorded Greetings -Dial by Name directory Please note:You must have an active iTeleCenter service plan in order to use the iTeleCenter app on your iPhone.
Call One UC
Manage your home or office telephony services remotely. Make and receive calls using your landline number over WiFi or cellular data, and seamlessly transfer calls between devices. Includes features for conference calls, voicemail, and fax management.
- Join audio/video conferences
- Make/receive calls with landline number
- Transfer calls between devices
- Add video to calls
- Use landline caller ID
- Voicemail and fax playback
- Transcribed voice messages
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Max UC - For customers of Call One using the Call One UC product. IMPORTANT: FULL TELEPHONY FUNCTIONALITY IS ONLY AVAILABLE WITH AN ACTIVE CALL ONE UC ACCOUNT ***** With Call One UC, you can take control of your home or office telephony services from anywhere. FEATURES • Call One Meeting: Join audio and video conferences that you are invited to • Make and receive calls over WiFi/LTE/3G using your landline number • Move calls between your landline, mobile and tablet devices, without hanging up • Add video to your calls • Make calls from any phone using your landline caller ID • Receive new voicemail alerts • Playback voice and video messages and view faxes • View transcribed voice messages • Control how incoming calls are handled • Sync your Accession contacts across devices NOTE: Your current feature bundle may not offer all features listed and may require you to pay additional subscription charges to access certain features. Contact your sales agent for information. Call One UC also requires 3G/4G or WiFi access. Use of these services may incur additional charges.
Screenshots
Verdict
The clearest difference is rating: iTeleCenter at 4.6 against Call One UC's 4.2. iTeleCenter also leads on update cadence (every 6 weeks vs every 4 months) and review sentiment (62% vs 50%). Call One UC's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iTeleCenter holds the better App Store score, 4.6 against 4.2. Both are backed by a comparable volume of ratings — 139 and 29 respectively. Written reviews point the same way: 62% of iTeleCenter's written reviews are positive against 50% of Call One UC's.
iTeleCenter ships an update every 6 weeks, Call One UC every 4 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | iTeleCenter | Call One UC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (139 ratings) — better | 4.2 (29 ratings) |
| Positive reviews | 61.5% of reviews — better | 50.0% of reviews |
| Number of ratings | 139 — better | 29 |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 148 MB |
| Age rating | 4+ | 4+ |
| Developer | COA Network | Call One, Inc. |
Customer experience
iTeleCenter
Call One UC
In-app purchases
iTeleCenter
No in-app purchases
Call One UC
No in-app purchases
