iTel Mobile Dialer. vs UNIVERGE ST500
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iTel Mobile Dialer.
This app enables VoIP calls and SMS over data networks like 3G/4G and WiFi. It also offers cross-platform instant messaging and simplified calling card usage. Users need an operator code from a VoIP service provider to use its features.
- VoIP Calls & SMSs
- Cross-platform Instant Messaging
- Automated Calling Card usage
- Mobile Top Up facility
- Easy Sign Up with Mobile Number
- Buddy List creation
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iTel Mobile Dialer Express is a mobile app for iPhone and other smartphones, offering a range of functionalities like VoIP Calls & SMSs, cross-OS Instant Messaging, automated Calling Card usage and much more from data enabled mobile phones (3G/4G or WiFi). For using this app, end users will need an Operator Code, which they can obtain from a VoIP Service Provider. While Service Providers can use this White Label Platform to offer Mobile VoIP services in their own brand. Features: 1 VoIP Calls & SMSs via Wifi, 3G / 4G, edge or UMTS. 2 Cross-platform Instant Messaging – an iPhone user can chat with other platform’s users. 3 Easy Sign Up with Mobile Number as user ID & automatic Buddy List creation with facility to invite phonebook contacts to install the app. 4 Easy Calling Card usage – No need to dial Access Number, PIN or even Destination Number for making calls. 5 Facility to enable Mobile Top Up. For Service Providers iTel Mobile Dialer Express is available in all major OS Platforms and you can fully customised & brand it as per your requirements. For a free trial: 1.Register for a free Demo, with details of your softswitch(IP, Port) & we will send you a Demo Operator Code for testing the app on your own softswitch. For End Users You will be prompted for the following while starting the app: 1.Operator Code – Collect Operator Code from your VoIP service provider. If the Service Provider is using REVE platform, he will be able to provide a valid Operator Code. For assistance on finding a Service Provider please email us. 2.Mobile Number – to be entered with country code. 3.Password – Received via SMS / IVR after entering your mobile number.
UNIVERGE ST500
This app allows users to make and receive business calls from their mobile devices as if they were at their desk. It integrates with iOS contacts and offers various call management features, simplifying business communications and potentially reducing mobile call costs.
- Make and receive business calls from mobile
- Integrates with iOS phone contacts
- Call history grouped by contact
- Hands-free and Bluetooth headset support
- Video call capabilities
- Security and encryption via TLS and SRTP
- Voicemail access and message waiting indicator
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Today’s competitive and fast past business environment means that employees are no longer bound to a desk - you need to be mobile and be able to work where your work takes you. NEC’s UNIVERGE ST500 softphones for iPhone allow you to make and receive calls from virtually anywhere, as if you were at your desk. While in the office connect to the Wi-Fi to handle your calls. While outside the office you can use your mobile data (3G / 4G) to handle you calls, and you can reduce incurring mobile call costs (See Notes below). Deploying a ST softphone can save your company money by no longer having employees call-forward their desk phones to their mobile. Staff will also be able to make free internal calls and inexpensive local calls from the softphone rather than all calls being made directly from their mobile phone. By only giving out your desk phone number (not your mobile number), you will always be contactable and you will only have a single call history and work voicemail to check. The ST500 simplifies your communications. [Application features] ・Integration to iOS phone contacts ・Call history (Missed / Incoming / Outgoing) grouped by contact ・Custom star code dial panel for quick dialling ・Hands-free mode ・Bluetooth Headset ・Video call(H.264/AVC) ・Voice codecs: Opus, G.722.1, G.711A/μlaw, G.722, G.729a ・Dial plan ・iOS CallKit support ・iOS PushKit support [Call features] ・Security and encryption via TLS and SRTP ・Make and Answer calls ・Call waiting ・Hold / Retrieve hold ・Transfer ・Call park ・Station hunt groups ・Call pickup ・Dial DTMF (RFC 2833/In-band) ・Call forward – All, Busy, No Answer and Logout ・Voicemail access and Message waiting indicator NOTE: To work outside your corporate Wi-Fi, you will require a VPN connection or a Session Border Controller. THE ST500 is free to use on your NEC Phone systems (SL2100, SV9100, SV9300 or SV9500), but requires an activation code that you can obtain from your NEC representative. It may also requires spare licences capacity on your phone system to create a standard SIP extension.
Screenshots
Verdict
The clearest difference is rating: iTel Mobile Dialer. at 3.6 against UNIVERGE ST500's 3.0. iTel Mobile Dialer. also leads on ratings volume (355 vs 9) and review sentiment (26% vs 13%). UNIVERGE ST500's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, update cadence, in-app purchases and device support 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.
iTel Mobile Dialer. holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: iTel Mobile Dialer. has 355 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 26% of iTel Mobile Dialer.'s written reviews are positive against 13% of UNIVERGE ST500's.
iTel Mobile Dialer. ships an update every 2 months, UNIVERGE ST500 every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | iTel Mobile Dialer. | UNIVERGE ST500 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (355 ratings) — better | 3.0 (9 ratings) |
| Positive reviews | 26.0% of reviews — better | 12.5% of reviews |
| Number of ratings | 355 — better | 9 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 86 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | REVE Systems (S) Pte. Ltd. | NEC Corporation |
Customer experience
iTel Mobile Dialer.
UNIVERGE ST500
Bugs and requests
iTel Mobile Dialer.
Reported bugs
5 issues- Stuck on initializing
- Calls not connecting
- Frequent call drops
- Compatibility issues with iPhone 4s and older devices
- Crashes on iOS 6 and 10
Requested features
4 requests- Support for MMS
- Bluetooth headphone support
- Dark mode
- Better call quality
UNIVERGE ST500
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iTel Mobile Dialer.
No in-app purchases
UNIVERGE ST500
No in-app purchases
Questions
Is iTel Mobile Dialer. free?
Is UNIVERGE ST500 free?
Which has better reviews, iTel Mobile Dialer. or UNIVERGE ST500?
Do iTel Mobile Dialer. or UNIVERGE ST500 have ads?
Which is updated more often, iTel Mobile Dialer. or UNIVERGE ST500?
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