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minutes (double 5), if that fails it will try in 20 minutes (double 10), etc. until a maximum of 15 hours is reached. However, if any other payment or event happens at the meter, the meter will attempt to connect and transmit all pending data at that time. If the connection fails again after another event, it will try again exponentially up to 15 hours. v. The Proposer shall describe how Meter communications is handled when in MTA's spare inventory. Meters can be in spare inventory for longer than 12 months. IPS has two primary ways of handing such a situation. Recommended Option 1: The SIM or Electronic ID remains on and activated indefinitely. In such a case, no additional reactivation is required. Network settings will remain active, even though meters should be turned off to conserve energy. This means that even after 12 months (or longer), the meter can be powered up and made to communicate without any additional steps needed. IPS is proposing this method for the City of Redwood City. Option 2: After a certain period of time of inactivity, meaning no use for a period, the SIM or Electronic ID of each meter can be set to deactivate. In such a case, the meter would need to be reactivated prior to putting the meter into service. 13. Communication Dead Zones Proposal Deliverables: a. The Proposer shall describe its policies and procedures regarding communications dead zones, including: i. Any pre-installation surveys Proposer plans to conduct and the tools to be used. ii. Past history with the Proposer's selected cellular service provider in resolving dead zones in other cities. iii. Alternative communications methods (e.g., powered repeater, different provider). iv. IPS will conduct pre-installation surveys using both IPS meter equipment and handheld multi-carrier single-strength testers (Squid tester) to highlight any potential problem areas and address with carrier in advance of the deployment. Such surveys can either be conducted at each specific meter location or at both ends and the middle of each block in order to provide representative data. If any trouble spots are found, IPS will bring the carrier in for additional survey and remediation in advance. v. IPS has achieved excellent connectivity with T-mobile with the 6000 meters currently deployed in SFpark. However, on occasion, we have discovered weak signal / dead zones and have escalation policies in place to address this with the carrier. While a communication failure with IPS equipment is very rare, in the event of such a communication failure, IPS has many tools at its disposal. • Meter connectivity logs — to determine a repeatable issue that may be due to signal • Signal Strength Analyzers — although meter communications are tested at the point of installation to identify any issues with connectivity, IPS can provide additional services. • Meter Diagnostics — ability to force a meter to make a connection with the IPS back office. This resolves 99% of all connectivity issues. Training will be provided as part of our solution. Incident prioritization IPS has a process for wireless coverage incident prioritization, including target response times. Six levels of priority are available within the IPS process for problem management and the logging of incidents reported by Customers or detected by surveillance teams. Below is a summary of the priority levels and response times. REV: 05-05-16 JS Page 127 of 177 ATTY/AGR.2016.094/IPS Group