APPI-Smart features the Beep-to-Call (double tap on the central button ► phone call): in addition to notifying your teammates (« Beep » feature), the referent contact is called and can be included in the APPI conversation, ideal when the operation team needs external support!
Thanks to a radio or wired link, an APPI-Com radio located in a zone accessing LTE / 3G / 4G network can communicate with other APPI-Com radios having no access: workers in a sewer or confined space can now work safely and communicate among themselves and with the external world, plus any “man down” alert will be sent out for their safety!