SUMOFIBER Mobile Voice vs 123Telecom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SUMOFIBER Mobile Voice
This app brings your office phone system to your mobile device, enabling you to make and receive business calls using your office number and extension. Manage voicemail, transfer calls, and record conversations on the go, all while maintaining a professional presence.
- Receive calls to office number
- Send and receive SMS
- Make calls as office extension
- Display office caller ID
- Call transfer and parking
- On-demand call recording
- Visual voicemail management
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SUMOFIBER Voice provides the functionality of your desk phone right on your iOS tablet or smartphone, allowing those on-the-go to make and receive business calls from anywhere while maintaining a single office phone number and voicemail. * Receive calls to your office phone number * Receive SMS * Make calls as your office extension * Calls made with your mobile show your office caller ID * Transfer calls to other company or public numbers * Park callers on the office system, or place them on hold on your device * On-demand call recording for later reference * Configure call forwarding and Do Not Disturb * Visual management of voicemail messages * Corporate contacts' extensions downloaded on login * Click to call integration with mobile device * Make calls over WiFi or 3G / 4G / LTE or Cellular ### SUMOFIBER Voice requires an active SUMOFIBER account ### *** Voice quality is highly dependent upon your WiFi or 3G / 4G / LTE network bandwidth ***
123Telecom
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123Telecom is a SIP softclient that extends VoIP functionality beyond the land line or desktop, bringing features of the platform directly to end-user's mobile devices as a Unified Communications Solution. With 123Telecom, users are able to maintain the same identity when making or receiving calls from any location, regardless of device. 123Telecom also grants users the ability to manage contacts, voicemail, call history and configurations in a single location. This includes the management of answering rules, greetings and presence which all contribute to more efficient communication.
Screenshots
Verdict
The clearest difference is update cadence: SUMOFIBER Mobile Voice at every 2 months against 123Telecom's every 10 months. On price, ads, 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.
SUMOFIBER Mobile Voice ships an update every 2 months, 123Telecom every 10 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.
| Parameter | SUMOFIBER Mobile Voice | 123Telecom |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 120 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | SUMOFIBER LLC | 123Telecom Limited |
In-app purchases
SUMOFIBER Mobile Voice
No in-app purchases
123Telecom
No in-app purchases
Questions
Is SUMOFIBER Mobile Voice free?
Is 123Telecom free?
Do SUMOFIBER Mobile Voice or 123Telecom have ads?
Which is updated more often, SUMOFIBER Mobile Voice or 123Telecom?
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