To maintain a secure environment, Security Guards and security services companies must not only have well-trained staff deployed, but they also must equip them with the right tools for the job. One of the most important tools is an effective communications solution so that their team can remain coordinated and safe while performing security checks, perimeter checks and while responding to real emergencies. The SD7 Handset is an ideal replacement for legacy LMR two-way radios since it looks, feels and operates just like a handheld radio, but it operates on a cellular network so that it provides excellent coverage. The SD7 Handset can also work over Wi-Fi networks if there are parts of the property, such as a basement, where cellular signal is not strong. With the right security accessories, the SD7 Handset can also be used discretely.