Section 4B: Terms & Conditions / Warranty 189Coverage. Available coverage areas for Services are generally identified in ourmapping brochures and at www.sprintpcs.com. This may include coverage on ourdigital network (the “Sprint Nationwide PCS Network”) as well as coverage wemake available to you through agreements with other carriers (“off network” or“roaming” coverage). All coverage maps are high level representations of outdoorcoverage and there are gaps in coverage within areas shown as covered on the maps.Coverage is not available everywhere, nor can we guarantee you will receive coverageat all times, or without interruptions or delays (e.g., dropped calls, blocked calls, etc.) inthe coverage areas we identify. Actual coverage and quality of Services may be affectedby conditions within or beyond our control, including network problems, software, signalstrength, your equipment, structures (including buildings in which you may be located),atmospheric, geographic, or topographic conditions.Roaming Coverage. You are roaming anytime your phone indicates that you areroaming. Roaming coverage is only available with certain devices and, unlessincluded as part of your Services, will result in additional charges. Roaming callsplaced “manually” (through an operator or with a credit card) will always incurseparate and additional charges. Depending on your phone settings, you mayautomatically roam if there is a gap or interruption in coverage within the SprintNationwide PCS Network coverage area and roaming coverage areas. See yourphone guide for how to adjust phone settings. Certain features and services maynot be available in roaming coverage areas (including PCS Vision, voicemail, callwaiting, call forwarding, etc.).Charges. Carefully review the terms of your Services. You will be assessed chargesbased on the terms of your Services including, without limitation, monthlyrecurring charges and charges based on actual usage (e.g., charges for longdistance, roaming, call forwarding, directory assistance, etc.). Airtime and othertime based usage charges are calculated from when your device first initiatescontact with a network until the network connection is broken, whether or notyou were actually successful in connecting to the intended destination. However,you will not be charged for voice calls that ring and do not pick up, or if you get abusy signal. For voice calls received by your device, you are charged from the timeshortly before the phone starts ringing until the call is terminated. You arecharged for an entire voice call based on the time period in which the call isinitiated. Partial minutes of use are rounded up to the next minute.Sprint PCS Vision Charges. Vision usage is measured in bytes, not in minutes.Bytes are rounded up to kilobytes. Usage rounding occurs at the top of each clockhour while in a session and at the end of each session and is then charged to youbased on the terms of your Services. Depending on your Services, usage may becharged against an allowance or on a fixed price per kilobyte. Usage charges maybe rounded up to the next cent at monthly or other intervals. In certain instances,you may not know that your session has not ended. As long as your device isconnected to our network, you will incur data usage charges. You will be chargedfor all data directed to the internet address (or “IP address”) assigned to yourdevice, regardless of who initiates the activity or whether your device actuallyreceives the data. This includes, but is not limited to, the amount of dataassociated with the particular information/item (e.g. game, ringer, email, etc.),