RS vs PTT4U

Functional overview of the application DR functions You can use some transceiver’s DR functions. Share pictures Send and receive voice and pictures. Map See the location of repeater sites or other stations on a map using received position data, or your transceiver’s repeater list. Automatically set the transceiver’s “FROM” and “TO” fields by tapping a repeater site or a station on the map. Receive History In the DV mode, read and edit the received station’s information. Download additional information from an Internet database, such as QRZ.com or APRS.fi. Text messaging Send and receive text messages. Call Sign list Edit call signs and names used in the DR function. Also, you can add a call sign and a name in the Call Sign list. Repeater list See the detailed data entered in the Repeater list. Transceiver settings Change some of the transceiver’s function settings. Application settings Select application software settings. Import Import a Repeater list or a Call Sign list. Export Export a Repeater list, a Call Sign list, or Receive History. See the transceiver’s instruction manual for details. The instruction manual can be downloaded from the ICOM web site. Device requirements The RS-MS1I operating requirements are as follows: iOS16 or later Usable transceivers (As of May 2026) - ID-4100A/E + Bluetooth unit (UT-137) - ID-52A or ID-52E *1 - ID-52A PLUS or ID-52E PLUS *2 - ID-5200A or ID-5200E *3 - IC-705 *4 *1 Supported in RS-MS1I Ver.1.1.0 or later. *2 Supported in RS-MS1I Ver.1.3.0 or later. *3 Supported in RS-MS1I Ver.1.4.0 or later. *4 Supported in RS-MS1I Ver.1.2.0 or later. Preparation To use the RS-MS1I with a supported transceiver, you need an optional Bluetooth unit. See your transceiver’s instruction manual for details. Transceiver’s settings Set the following functions as shown below to use the RS-MS1I. [Function] > [CI-V] > [CI-V Transceive]: ON [Bluetooth Set] > [Data Device Set] > [Serial Port Function]: CI-V (Echo back OFF) Note: - The RS-MS1I may not work with all iPhones or iPads, even if they are one of the tested devices. This is because an application program on your device may conflict with the RS-MS1I. - The RS-MS1I may not be used, depending on the OS version, installed application, and so on. - Bluetooth LE is used for the connection with the transceiver, so there may be a time delay between the transceiver’s operation and the display on the iPhone or iPad. - When sending or receiving pictures using “FAST mode,” the headset audio will be temporarily interrupted because of the transceiver’s Bluetooth unit limitations. - You may need to connect to the Internet through a Wireless LAN, an LTE network or a 5G network for some functions. - The RS-MS1I supports only portrait orientation with the iPhone. It does not support Auto Rotate. However, landscape orientation and Auto Rotate are supported with the iPad.

Where can I get my account credentials? You can get it from ptt4u.com website What distance do PTT4U radios cover? There is no limit. As far as you have GSM/3G/4G or WiFi signal you will be in reach. This means that you are only dependent on the cellphone carrier service, or a WiFi hotspot. Why is this better compared to traditional walkie talkies? Traditional two way radio will always be limited by distance and interference. As we work with a digital connection that relies on cellphones carriers, you will always experience loud and clear interference-free communications. Besides, you don’t need to invest in expensive radio infra-structures, like repeaters, towers, antennas or leasing sites. Who can benefit from PTT4U? Taxi & general transportation companies, law enforcement, private security guards, construction sites, logistics, box movers, agriculture industry, and anyone else how needs 2-way professional radio communications without range restrictions. I need to cover a wide area and in multiple locations. Do I need a set of repeaters and antennas? No. Our service uses the network of the GSM/3G/4G carriers. You don’t need to invest on any network infra-structure, besides the mobile or hand-held radios. Does it work on any country? As far as you have internet access (via 3G/4G or WiFi) then you can use our system, regardless the location. Can the users talk between them, if they are in different countries? Yes. Any user can talk to any other user, regardless the location. How much data do PTT4U radios require in a month? For a regular use, 500 MB data plan will be enough. In extreme conditions, where communications take place for long periods, 1 GB data plan may be required Do you offer a dispatch system? Yes, you can install our dispatch system on any Windows PC and contact any users, check their position on the map, speed, send personal messages, make private and groups calls. A Platform Management Console is also available and allows you to have complete control of your radio fleet. I need a large amount of radios. Can I try before I buy? Not at the moment. But you can buy one of our Startup Packages at a discounted price, before you invest in a large quantity of radios/subscriptions. Is this for me? Any of the following industries can use our solution: Transportation Courier, Taxi, Limo Service, Tow truck, Railway, Airport, Seaport, Light rail, MRT, Logistics Construction Constructions Site, Cement delivery, Electrical, Excavating, Plumbing, Roofing Security Services Patrol Guard Service, Hotel, Condo, Offices, Factory, Sports events, Education, Fire Service Hospitality Restaurant, Hotel, Resort, Shopping mall, Supermarket Government Police, Sheriff’s Departments, Public Works, Water Departments Private users Many private customers use our service to stay in touch with family and friends Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life. - Privacy Policy and Terms of Use: http://ptt4u.com/about-ptt4u/