# Selcall Selective Calling Tone — Generate over 20 types of tone > App generates over 20 types of selective calling tones with queuing and memory features. (iPhone/iPad app by Black Cat Systems.) - Source: https://appshunter.io/ios/app/selcall-selective-calling-tone/id547030339 (this page in markdown: same URL + `.md`) - Developer: [Black Cat Systems](https://appshunter.io/developer/301047032) - Category: Utilities, Reference - Price: $2.99 - Rating: 3.20/5 from 14 App Store ratings · 38 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 2 MB - Languages: American English - Released: 2012-08-01 - Data updated: 2026-08-25 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/selcall-selective-calling-tone/id547030339/reviews.md ## What is Selcall Selective Calling Tone? SelCall generates Selective Calling Tones. Select your tone type from the extensive selection of available modes, then touch the button for each tone you wish to send. You can even queue up tones and have them sent in a burst, if you wish. The following tone types can be generated: DTMF CCIR1 CCIR7 PCCIR EIA EEA CCITT EURO NATEL VDEW MODAT ZVEI1 ZVEI2 ZVEI3 PZVEI DZVEI PDZVEI ICAO ICAO SELCALL 32 CTCSS CODAN Touch the button on the upper right corner to get a list of SelCall tone modes, and select the mode you wish to use. Then touch the button for each tone you wish to generate. If you turn the switch off, you can queue up several tones (they will be displayed to the left of the switch) and then turn the switch back on to play them. Any tones that you played by turning the switch on can be repeated by tapping the RPT/Repeat button. You can also store commonly used tone sequences. Tap on the Mem button to bring of the list of memory entries, which will by empty at first. To add an entry, tap the Edit button, then the green plus sign to add an entry, which will get a default name of Untitled. Tap Done, then tap on the Untitled entry to edit it. You can change the name, as well as the tone keys to be sent. To send an entry, tap the send button. It will be sent (or stored in the buffer if the switch is off). It will also be placed in the repeat buffer, so you can tap RPT/Repeat to re-send it. The duration of tones and gap between them can be customized for most modes. Enter the values in milliseconds. The maximum allowed values are 500 milliseconds. In CTCSS mode, touch the button for the tone that you wish to continuously generate. There is a switch which turns the tone on and off, and when on, the tone will continuously play, even when you switch to another tone mode, so you can combine CTCSS with other tone modes. In CODAN mode, adjust the center frequency if necessary, select the priority of the message, and dial in the ID to call, and your ID. Then tap Send. Sequence mode allows you to create sequences of arbitrary tones. First, you will see a list of your sequences. You can use Edit to add additional sequences, delete a sequence, or re-arrange them. Three sample tone sequences are created for you, as examples. To rename a sequence, tap on it and edit the text. To edit to send a sequence, tap on the disclosure indicator at the extreme right. Each sequence is a set of lines, each of which has two numbers. The first is the frequency of the tone in Hertz, the second is the duration of the tone in milliseconds. One second is 1,000 milliseconds. Do not put an additional space between the numbers, after them, before them, or use any other characters, or the sequence will not correctly play. You can play two tones at the same time, in that case, three numbers must be entered on each line, the first two are the tone frequencies, the third is the duration. The first sample sequence, Seq 1, sends eight tones. The first is 1200 Hz for 550 milliseconds, then there are six more tones: 1100, 1000, 1100, 1000, 1100, 1000 Hz, each 200 milliseconds. Then a final tone of 1500 Hz for 350 milliseconds. To play a sequence, tap Send. To edit a line, tap on it and edit the text. You need a single space between the frequency and length. You can use Edit to add additional lines, delete a line, or re-arrange them. ## Key features - Over 20 tone types - Tone queuing and burst transmission - Customizable tone duration and gap - Memory for storing tone sequences - CTCSS continuous tone generation - CODAN mode for priority calls ## Recent user reviews (10 of 38) All indexed reviews: https://appshunter.io/ios/app/selcall-selective-calling-tone/id547030339/reviews.md ### 1/5 — Не работает selcall codan *2025-10-21* Не работает selcall codan на iphone 16 ### 4/5 — SelCall for Google Play *2025-05-26* Please publish this for Google Play Top ### 4/5 — LOW VOLUME! *2025-03-08* I was so disappointed it could’ve been a good app but the volume was so low. I could barely hear it. I placed it right next to another phone to see if it would pick up the tones on all it gave was a 111 all the time, sorry but it’s a big fail ### 5/5 — SELCAL APP *2025-02-21* This app works just fine. There’s a bit of a learning curve to understand how it works, but it’s totally worth it. The default DTMF function is spot-on. If you want to generate SECAL codes, ya gotta dig a little deeper into the program. But, IT DOES WORK!!! ### 1/5 — Aviation. Does not work *2023-02-26* Tried several times. Doesnt work. Interface not very good. It should have a dash. Needs a lot of improvement ### 5/5 — SELCAL APP *2022-09-15* This app works just fine. There’s a bit of a learning curve to understand how it works, but it’s totally worth it. The default DTMF function is spot-on. If you want to generate SECAL codes, ya gotta dig a little deeper into the program. But, IT DOES WORK!!! ### 1/5 — Does not work on aircraft *2022-09-03, version 1.6* This app does not work for airplane selcal tests. There is an android version that works perfectly. ### 1/5 — Useless doesn’t work *2022-08-24* Simply does not work none of the features work you can’t store any code it’s useless ### 1/5 — Doesn’t work *2022-08-17* Don’t buy it. ### 4/5 — It Does Work! *2022-08-03* I’m also flying the A380 and the issue the other two reviewers must be having is they have not selected “Speaker” as the output. To do this, tap the top right to enter the tone type generator menu then again tap top right to select “Speaker” instead of “iPhone” the volume will now be loud enough. Lost a star from me because clearly the UI needs improvement to make it more intuitive. ## Frequently asked questions about Selcall Selective Calling Tone ### What does Selcall Selective Calling Tone do? Selcall generates over 20 different types of selective calling tones. You can select a tone type, then touch a button to send it. The app also allows you to queue up multiple tones to send them in a burst. ### What are the key features of this app? Key features include generating over 20 tone types like DTMF, CCIR, and CTCSS, queuing tones for burst transmission, storing frequently used tone sequences in memory, and customizing tone durations and gaps. ### Is this app free to use? Yes, the application is available for free. There are no in-app purchases or advertisements mentioned. ### What are some common use cases for this app? This app is useful for generating specific tones required for selective calling systems, radio communications, and other audio signaling needs. It allows for efficient transmission of pre-defined or custom tone sequences. ### Can I customize the tones and sequences? Yes, the duration of tones and the gap between them can be customized for most modes, with values entered in milliseconds up to 500ms. You can also create and store custom sequences of tones, including dual-tone sequences. ## Version history (last 5 releases) ### 2.0 — 2024-12-22 Added ICAO SELCALL 32 mode. ### 1.6 — 2017-07-02 This app has been updated by Apple to display the Apple Watch app icon. Updates for iOS 10 64 bit ### 1.5 — 2015-05-02 Added support for Bluetooth audio devices. Fixed a bug that could cause a crash when editing sequences. ### 1.4 — 2015-02-13 Fixes a crashing problem with iOS 8.1.2 ### 1.3 — 2014-06-07 CTCSS tone can play while other tones are generated. Memories now support up to 40 digits. Tone sequences can generate two tones at the same time. Fixed a bug with tone sequences not always being saved. ## Apps similar to Selcall Selective Calling Tone | App | Rating | Price | Category | | --- | --- | --- | --- | | [Daily Sound Notes Professional](https://appshunter.io/ios/app/daily-sound-notes-professional/id887262884) | — | $1.99 | Utilities | | [Csplice](https://appshunter.io/ios/app/csplice/id1553613577) | 5.0 (4) | $2.99 | Utilities | | [Blue Box](https://appshunter.io/ios/app/blue-box/id391832739) | 5.0 (3) | $4.99 | Utilities | | [Infrasound Recorder](https://appshunter.io/ios/app/infrasound-recorder/id969566810) | 4.6 (285) | Free | Utilities | | [Dialnostics](https://appshunter.io/ios/app/dialnostics/id662583874) | 5.0 (5) | $5.99 | Utilities | | [Fiber Optic Color Code](https://appshunter.io/ios/app/fiber-optic-color-code/id1366358929) | 4.7 (51) | $2.99 | Utilities | ## More apps by Black Cat Systems - [WireCalc](https://appshunter.io/ios/app/wirecalc/id301047029) - [Transmission Line Calc](https://appshunter.io/ios/app/transmission-line-calc/id302734281) - [RF Link Calc](https://appshunter.io/ios/app/rf-link-calc/id303034300) - [dB Calc](https://appshunter.io/ios/app/db-calc/id303470503) - [Drill Calc](https://appshunter.io/ios/app/drill-calc/id304434324) - [Photon Calc](https://appshunter.io/ios/app/photon-calc/id304436071) All apps by Black Cat Systems: https://appshunter.io/developer/301047032 ## Related topics [tone caller](https://appshunter.io/ios/topics/tone-caller) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*