CriticalLinc Knowledge Center

Got a phone? Get connected here.

If you've received your new SONIM phone, it's time to get connected to the CriticalLinc network. Click the link below and watch the "Get Connected" video tutorial or print out the "Get Connected" instruction sheet for your model.

• Get connected with the XP8 video
• Get connected with the XP5s video
• Get connected with the XP8 instruction sheet
• Get connected with the XP5s instruction sheet
• XP8 Onboarding PDF
• XP5s Onboarding PDF
• PTT Talkgroup and Contact Lock Feature

Software Update Information

• Software update details
• Instructions to complete
        your software update

Learn more about SONIM phones.

Mission critical situations demand smart communication, connectivity, and flat-out ruggedness. SONIM phones stand out when all other devices fail. The XP8 and XP5s are the toughest, most reliable phones that money can buy. Their performance in punishing environments earned them their spot in the CriticalLinc LTE lineup.

• View Phones
• XP5s Video
• XP8 Video
• How to change your phone's password
• How to move your contacts
• XP5s User Guide
• XP8 User Guide
• Shop Accessories

Using your new SONIM Phone.

Now that you have your new XP5s, learn more about it. How-to-videos are available for you.

• Segment 1: phone orientation
• Segment 2: setting the lock screen and main screen icons
• Segment 3: sound settings and speaker control
• Segment 4: making a cell call
• Segment 5: sending a text or picture message
• Segment 6: using the camera and gallery
• Segment 7: using calling features
• Segment 8: using and adding contacts
• Segment 9: voicemail notification and retrieval

• Using iDEN and LTE Phone at the same time

Now that you have your new XP8, learn more about it. How-to-videos are available for you.

• Segment 1: phone orientation
• Segment 2: setting the lock screen and main screen icons
• Segment 3: sound settings and speaker control
• Segment 4: making a cell call
• Segment 5: sending a text or picture message
• Segment 6: using the camera and gallery
• Segment 7: using calling features
• Segment 8: using and adding contacts
• Segment 9: voicemail notification and retrieval
• Segment 10: programmable buttons

Watch the videos below on how to use Mission Critical Push to Talk with your XP5s phone.

XP5s MCPTT

• PTT Overview
• Ad hoc and Enterprise Groups
• See how talk groups and scanning work with MCPTT on the XP5s
• Tips and Tricks
• See how Linc Message works on the XP5s
• Understanding the world of Contacts
• Emergency PTT Call Instructions for Sonim Phones

Watch the videos below on how to use Mission Critical Push to Talk with your XP8 phone.

XP8 MCPTT

• PTT Overview
• Ad hoc and Enterprise Groups
• See how talk groups and scanning work with MCPTT on the XP8
• Tips and Tricks
• Linc Message
• Linc Map
• Understanding the world of Contacts
• Emergency PTT Call Instructions for Sonim Phones