Comparison

SUMOFIBER Mobile Voice vs 123Telecom

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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 ***

About

123Telecom

Features
Read full description

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

SUMOFIBER Mobile Voice3 screens
123Telecom4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
SUMOFIBER Mobile Voice versus 123Telecom: the parameters behind the verdict, then further details
ParameterSUMOFIBER Mobile Voice123Telecom
PriceFreeFree
Rating4.5 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 months — betterEvery 10 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size120 MB124 MB
Age rating4+4+
DeveloperSUMOFIBER LLC123Telecom Limited

In-app purchases

None

SUMOFIBER Mobile Voice

No in-app purchases

None

123Telecom

No in-app purchases

Questions

Is SUMOFIBER Mobile Voice free?
SUMOFIBER Mobile Voice is free to download, with no in-app purchases.
Is 123Telecom free?
123Telecom is free to download, with no in-app purchases.
Do SUMOFIBER Mobile Voice or 123Telecom have ads?
Neither SUMOFIBER Mobile Voice nor 123Telecom shows ads.
Which is updated more often, SUMOFIBER Mobile Voice or 123Telecom?
SUMOFIBER Mobile Voice ships an update every 2 months, and 123Telecom every 10 months. Most recently, SUMOFIBER Mobile Voice was updated on November 3, 2026 and 123Telecom on October 27, 2026.

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