Data Retention Periods of Major Cell Service Providers
The leaked DOJ carrier-retention chart released by the ACLU, shown alongside the limited public disclosures carriers make today.
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Mobile Carriers
Guides, reporting, and technical notes tagged Mobile Carriers.
2 articles in Mobile Carriers
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AT&T Dropped Calls: No Circuit Channel Available
A field note about dropped calls and the “No circuit/channel available” error, including the 2G-only workaround that resolved it on the affected phone.