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FAQ: Accessories

Sonim offers a unique feature in handset Settings, which allows phones to be programmed to power on and off based on power supply. Reference chart.

SettingDescriptionUse Case
Automatic power ONHandset will automatically power on when connected to power via USB C or charging pins.Handset will power on when it is connected to
vehicle kit or multi-bay charging pins, or car or
wall charger via USB C.
Automatic power OFF (at set time)Handset will automatically power off at the time it is set to power off. If voice or PTT call is in process, handset will power off 10 seconds after the call
has ended.
Handset will power off as scheduled.
Automatic power OFF (disconnected from power)Handset will automatically power off at the set hours after the handset is disconnected from power via USB C or charging pins. If voice or PTT call is in process, handset will power off 10 seconds after the call has ended.Handset will power off when no power is supplied from a vehicle kit or multi-bay charging pins, or car or wall charger via USB C.
Power OFF alertHandset screen pop-up alert appears 2 minutes before the scheduled power off time, with an option to snooze for 10 minutes.Reminder advising the handset is scheduled to
power off, with the option to delay power off for
10 minutes.

GPSLockbox ATMOS Temperature Control System drastically reduces downtime, by ensuring your phone battery maintains its operating temperature in extreme cold and hot weather.

Sonim partners with leading manufacturers to provide in-vehicle solutions with optional locking capability for Sonim handsets, to prevent theft or tampering. Specifications are provided in datasheets.

Some accessories are full-duplex, including wired and Bluetooth PTT headsets. Some accessories are half-duplex. Specifications are provided in datasheets.

Some accessories provide noise cancellation via the handset only (single-mic & near-end NC), and other accessories include DSP, noise suppression or cancellation. Specifications are provided in datasheets.

The PTT application enables channel selection. Channel Selection works on Kodiak Motorola Solutions powered PTT 9.1 (or greater/later) release for smartphones and 9.0.3 (or greater/later) release for feature phones. Channel Selection is also compatible with ESChat, which is mobile operator agnostic. A PTT provider may reach out to Sonim at [email protected] for more information on enabling channel selection.

Some RSMs include an emergency button, which is typically linked to the emergency button on the Sonim handset.

Each RSM has a 3.5mm connector to connect a wired listen-only earpiece. The optional listen-only earpiece redirects the receive audio, while still transmitting audio through the RSM. This is necessary when in a situation where you don’t want audio broadcasted from the RSM.

Sonim and partners offer plastic holsters, pouches and RSMs with and without Channel Selection.

Please reach out to Sonim at [email protected], provide your contact information (Company, Name, Phone Number, Email Address) and detailed information regarding the request for interface information.

InterfaceXP3xp5sxp8
AudioProprietary 3.5mm for PTT, compatible with some non-PTT 3.5mm headsetsProprietary SecureAudio Connector, compatible with some 3.5mm accessories with Sonim adapterProprietary SecureAudio Connector, compatible with some 3.5mm accessories with Sonim adapter
USB-CUSB 2.0, unable to be used for audio and power at the same time, not compatible with 3.5mm adapters.USB 2.0, unable to be used for audio and power at the same time, not compatible with 3.5mm adapters.USB 3.1
Compatible with USB-C accessories, with the ability to create custom accessories that screw into the handset for an ultra-reliable connectionCompatible with USB-C accessories, with the ability to create custom accessories that screw into the handset for an ultra-reliable connectionCompatible with USB-C accessories, with the ability to create custom accessories that screw into the handset for an ultra-reliable connection
Charging PinsYesYesYes
XPandNoYes, proprietary XPand connectorYes, proprietary XPand connector

BLE Connect is a Sonim application that ensures wireless RSM/audio accessories can activate PTT/Emergency buttons. It serves as a bridge between PTT apps and PTT accessories.

Sonim handsets may contain the proprietary XPand interface, which extends the capabilities of the handset through rugged attached peripherals. Sonim offers a XPand Development Kit that allows for rapid proof of concept development. With the development kit, Sonim and partners have developed proof of concepts demonstrating compatibility with thermal imaging, channel selection, emergency button and sensors.

Sonim handsets may contain charging pins on the back of the handsets. These charging pins enable drop-in and go desktop and multi-bay chargers to power the handsets.

Sonim XP5s and XP8 handsets include the proprietary SecureAudio Connector.

  • Securely attach mission-critical audio accessories
  • Audio accessories thumb screw into handsets
  • Power audio accessories via handset (no external batteries required)
  • Increase audio performance via accessories (louder than battery-powered accessories)