Smartphone durci : sont-ils vraiment moins performants ?

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24 Hours Immersed in the Mont Blanc Massif

Sleeping on the Géant glacier, facing the legendary peaks of the Mont Blanc massif, is an extraordinary experience. This is what awaits the two winners of our contest, accompanied for this Stellar Camp by a guide from the Chamonix Guide Company and Lucy Paltz, Crosscall ambassador.  Here is their story. 8:00 a.m., in the center of Chamonix:   It’s cool, the sun is shining, the conditions are ideal for two days in the high mountains! On the agenda: ski touring, but also bivouac on the Géant glacier, a unique experience for the two winners of our contest.  The battery of our STELLAR-X5s Edition Chamonix Mont Blanc is fully charged, but we immediately activate Outdoor mode to minimize its use and thus increase its performance.  Outdoor mode allows you to put non-essential apps to sleep to prevent them from running in the background and wasting battery. It’s a real advantage compared to airplane mode because you remain reachable by phone or SMS, and the available apps can be customized. 9:00 a.m., on the other side of the Mont Blanc tunnel: Our adventure begins in Italy, as we take the Skyway cable car to get as close as possible to the Géant glacier. Arriving on the terrace of the Torino refuge opens the doors to high mountain with Mont Blanc within reach.  Wherever you look, the view is breathtaking. Our guide explains the different peaks revealed on the horizon and gives some tips for the upcoming hike. 10 a.m., skis on! We left our bivouac gear for the night in one of the refuge corridors to carry less weight for the ski touring day. We start our walk with a beautiful descent into the Vierge valley with a mandatory photo stop in front of the bluish seracs. Arriving at the bottom of the bowl, we put the skins on to ski back up to the Entrèves pass. I check the elevation gain on Iphigénie, the mapping app on my Stellar: 600m of ascent planned. An hour and a half later, we admire a breathtaking landscape of a myriad of peaks over 4000m, from the Barre des Écrins on one side to the Matterhorn on the other. After the picnic, we enjoy a descent on still fresh snow; the conditions are ideal for late April. Photo credits: Pierre Cosperec - Compagnie des Guides 3 PM, we put the skins back on!  We have to go back to get our bivouac gear and repack the backpacks for the night. While the other climbers and visitors descend into the valley, we look for a flat enough spot to set up our camp.  The guide explains how to check the spot to avoid pitching the tent on a crevasse, how to make a good platform for more comfort at night, and how to melt snow. We set up the tents facing the Dent du Géant! Photo credits: Pierre Cosperec - Compagnie des Guides 5 PM, alone in the world!  Gradually, the temperature cools and the silence is only broken by the cries of choughs that come to visit us to pick up crumbs from the biscuits shared around the tea. The stoves are running at full power to rehydrate us.  It’s an extraordinary feeling to be alone in the heart of the Mont Blanc massif while the sun warms the horizon. We explore the camp surroundings to add some souvenir photos to the gallery of our STELLAR-X5s! Photo credits: Pierre Cosperec - Compagnie des Guides 6:30 PM, dinner time.  On the menu: freeze-dried meals! Chicken curry, beef stew, or pasta with fried onions, it’s very filling and tastier than it looks. The guide even planned desserts, and while it’s a bit strange to pour boiling water into a pouch to rehydrate chocolate mousse, it’s enjoyed facing the sunset over Mont Blanc. 8 PM, everyone warm!  Once the sun is gone, the temperature drops suddenly. We each head to our tents to slip into the thick cozy sleeping bags lent by the Guide Company. Goal: pile at the bottom everything that fears cold and moisture. Ski boot slippers, overpants (we will sleep in first layer and fleece), and also the phone.  Even though it has held up perfectly since this morning (still 63%) despite heavy photo/video and mapping use, it’s best to avoid polar night temperatures to optimize its battery. 6:50 AM, up! Upon waking, frost covers the tent and the sleeping bag, but it was so cozy that we were not cold. The altitude gave some members of the group a slight headache: acclimatization takes time, we must not forget that we are sleeping at 3500m! Around a tea, we share our feelings and especially fully enjoy the last moments alone in the world on the glacier. By the time we pack up the tents, store the equipment, and start the return path to the cabin, the first climbers are already arriving. 9:30 AM: the fog is getting thicker. What was just a mist at dawn becomes so intense that you can't see three meters ahead. Heading to the Skyway to descend into the valley and have a cappuccino in Italy before returning to Chamonix! The experience was incredible, a true immersion in the magical landscapes of the Mont Blanc massif.  The STELLAR-X5s is the ideal tool for this kind of adventure since instead of carrying an external battery (which adds even more weight to an already heavy load), you fully benefit from its endurance.  Not to mention that its waterproof and shock-resistant features allow it to handle all the challenges of high mountain evolution! Lucy Paltz "Journalist and athlete, I work on many video content creation and social media projects. I am also a Crosscall ambassador." Website - Instagram 

PTI Phones: How to Choose a Reliable Model for the Safety of Lone Workers?

Which PTI phone to choose? Buying guide and comparison to equip lone workers According to the Ministry of Labor, in 2024, 549,614 workplace accidents were recorded in France. Reducing this number is a key priority to ensure employee safety, protect their health, but also guarantee the smooth operation of organizations and strengthen overall company performance.  When your employees are increasingly mobile and present in the field, the PTI phone becomes an essential asset in risk prevention and emergency management. It complements safety plans, training, and protective equipment already implemented in companies. The use of PTI smartphones : tools capable of detecting critical situations (fall, illness, assault) and quickly triggering an alert, enhancing lone worker safety while meeting employers' legal obligations. Because they often work alone in risky environments, lone workers must be able to rely on reliable equipment. The PTI phone meets this specific need: it combines the performance of a professional smartphone with advanced safety functions to alert immediately in case of danger. But how to choose the right model? Which features are truly essential? And which PTI smartphone best fits each use? Let's review to help you make the right choice for your organizations. What is a PTI phone? A PTI phone, or Lone Worker Protection device, is a mobile device designed to detect abnormal or dangerous situations when an employee is alone at their workplace. It relies on two types of triggers: a passive alert system (automatic detection of falls, immobility, loss of verticality) and an active trigger via an SOS button or manual alert.  Crosscall does not directly provide PTI software solutions but designs rugged smartphones compatible with the main solutions on the market. Paired with high-speed networks, public or private, these devices allow the creation of efficient PTI systems, meeting the safety requirements of businesses and communities. Beyond alerts, an effective PTI phone also relies on other essential assets: excellent connectivity, ergonomics adapted to field environments (even with gloves), a sufficient battery life to last a full workday, as well as proven resistance to shocks, dust, and water. These features make the PTI smartphone a true security tool serving businesses. Use cases for PTI phones: PTI phones are used in many sectors, each exposing workers to different risks depending on their environment: In the construction and building sector, workers operate on large sites, at heights or underground. Falls, mechanical accidents, or isolation on site make the use of a PTI phone essential to quickly alert emergency services. In the iIndustry,Technicians or maintenance operators may have to work alone in hazardous areas: factories, power plants, technical rooms. They are exposed to electrical, chemical, or heavy machinery risks. A PTI device ensures their continuous protection. In Logistics and Transport, forklift operators, drivers, or dock workers may find themselves isolated at certain times of the day or night. They are exposed to risks of falls, traffic accidents, immobilization, or even assault, especially in public transport. A PTI smartphone ensures reliable communication and continuous alert capability, even in remote or hard-to-reach environments. In the health sector, home care aides, nursing home staff, or night professionals work alone at patients' homes or in facilities. They may face fainting, stressful situations, or acts of aggression. A discreet and ergonomic PTI phone allows an alert to be triggered instantly. For security or defense professionals, field presence is often isolated, at night or in sensitive environments. Patrol officers, canine units, or military personnel may face emergency situations (assault, fall, technical incident). PTI equipment guarantees their safety by maintaining constant contact with a monitoring center or a supervisor. Find some examples of use by French Police and Gendarmes.  In distribution and retail, some employees may work alone, especially in logistics warehouses, goods receiving areas, or during off-hours. Others, in retail locations, are exposed to stress or aggressive situations, especially during closing times or security interventions. Using a PTI phone ensures their protection, thanks to discreet alert functions and reliable communication in all circumstances.  Key features of Crosscall PTI smartphones: In sectors like construction, industry, logistics, healthcare, or security, professionals often work in isolated and risky environments. To face these field realities, it is essential to rely on mobile equipment that is reliable, robust, and designed to respond effectively in emergencies. This is exactly where Crosscall PTI smartphones provide a concrete solution, combining safety, field performance, and advanced communication technologies. To choose the right PTI phone, several criteria are crucial: Durability : shock resistance and MIL-STD 810H certification, total waterproofing against all liquids and dust (IP68) Battery life : long-lasting battery designed to last a full day of intervention without recharging Programmable buttons : to quickly trigger an SOS alert or a Push-to-Talk call, even with gloves on Smart sensors : automatic detection of falls, prolonged immobility, or loss of verticality Network compatibility : 4G, 5G, Wi-Fi, and PMR to guarantee optimal connectivity, even in isolated areas Indoor/outdoor geolocation : for real-time tracking, including inside buildings Designed for field professionals, Crosscall PTI phones integrate all these features into reliable, durable, and certified devices capable of ensuring the safety of isolated workers, regardless of their job or environment.  Why choose a PTI phone rather than a standard smartphone? A standard smartphone does not include the specific safety features for isolated work. PTI phones, on the other hand, are designed for demanding conditions: construction sites, industrial sites, sensitive or hard-to-reach environments. Crosscall phones are built for field use: their shock resistance, waterproofing, and compact size allow them to operate in tough environments. They also include reliable connectivity via public or private high-speed networks, essential to ensure alert transmission in any environment, even when remote or logistically complex. The ergonomics are designed for real-world conditions, with programmable physical buttons, accessible and discreet, allowing you to trigger an alert in the blink of an eye, even with gloves on or silently in delicate or dangerous situations.  Our Crosscall PTI phone models and accessories: At Crosscall, we offer several PTI-compatible models, tailored to the needs of every professional environment: CORE-M6 : X-TREMESHIELD technology, full waterproofing IP68 / IP69K, 3 programmable buttons: SOS, AI & PTT CORE-Z5 : ultra-resistant smartphone with 4 programmable buttons, 100 dB speaker, enhanced battery life, and PMR compatibility. Perfect for extreme environments. STELLAR-M6 : rugged, compact, and lightweight smartphone with a programmable SOS button and excellent resistance to shocks and liquids. It is perfectly suited for medical environments, home care, or mobile healthcare professionals. X-COMMAND : Programmable Bluetooth remote control to keep your actions quick at hand and send alerts discreetly.   To discover To discover To discover To discover Conclusion: Choosing the right PTI phone is an essential step to effectively protect lone workers. By considering durability, detection features, connectivity, and battery life, companies can ensure they provide their teams with a reliable and suitable PTI solution. Crosscall offers a complete range of PTI smartphones and tablets designed to last and meet real-world demands.  Discover here which smartphones are best suited to your PTI needs.   FAQ: In which cases should you equip your teams with a PTI phone? You should consider a PTI phone when your employees: work alone, without direct supervision (day or night); work in hazardous areas: construction sites, roadways, technical rooms, unoccupied buildings, etc.; are exposed to falls, fainting, assaults, or industrial risks; operate on the move, in environments that are difficult to locate. In all these situations, a PTI phone like those in the Crosscall range provides a concrete solution in terms of safety, responsiveness, and regulatory compliance.  Which PTI phone should you choose based on your industry? The choice of a PTI phone depends heavily on the work environment. For intensive use in construction or heavy industry, a model like the Crosscall CORE-Z5 is recommended. For community work or rounds, the CORE-M6 is more suitable. In hospital settings, nursing homes, or home care services, the STELLAR-M6 is perfectly suited: compact, lightweight, waterproof against all liquids, it can be easily cleaned with antibacterial gel or disinfectant wipes. It also features an SOS button and is compatible with medical equipment. Each sector has its optimal model. What accessories are available for Crosscall PTI phones? Crosscall offers a range of accessories dedicated to field use: the X-CAR vehicle mount, the X-POWER external battery, the X-VIBES earpieces, and the X-DOCK charging and transfer stations. These devices make daily phone use easier in challenging environments.