frSIP Mobile (Legacy Support) vs 123Telecom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
frSIP Mobile (Legacy Support)
This application allows users to make and receive calls on their office phone line directly from their mobile device. It enables enterprise mobility by pairing your phone with your office extension, allowing you to stay connected anywhere with Wi-Fi or cellular data. The app can run in the background and will ring when your office phone rings.
- Make and receive office calls on mobile
- Pair mobile with office extension
- Background call ringing
- Use office line for outgoing calls
- Enterprise mobility
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The frSIP Mobile for iOS is a client software designed to work with any enterprise running frSIP UC 2.9.3 or above. Video calling is only available in frSIP UC 3.1 or above. This app provides enterprise mobility by enabling users to pair their mobile phone with their office extensions. You may make and receive calls on your office line right from your iOS device whenever you are connected to Wifi or 3G, 4G LTE. You may put this app in background mode and it will ring whenever your office phone rings. Outgoing calls placed on this app will be made via your office phone line. Take advantage of our mobility features and stay connected anytime, anywhere!
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: frSIP Mobile (Legacy Support) at monthly against 123Telecom's every 10 months. frSIP Mobile (Legacy Support) also leads on iOS requirement (7.0 vs 17.0). 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.
frSIP Mobile (Legacy Support) ships an update monthly, 123Telecom every 10 months. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.
| Parameter | frSIP Mobile (Legacy Support) | 123Telecom |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 7.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 91 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | Deltapath, Inc. | 123Telecom Limited |
In-app purchases
frSIP Mobile (Legacy Support)
No in-app purchases
123Telecom
No in-app purchases
Questions
Is frSIP Mobile (Legacy Support) free?
Is 123Telecom free?
Do frSIP Mobile (Legacy Support) or 123Telecom have ads?
Which is updated more often, frSIP Mobile (Legacy Support) or 123Telecom?
Other comparisons
