High inflation is having an impact on the usage of mobile phone services, which is set to restrict the sequential revenue growth of telcos in the April-June quarter to 2-4%, the slowest in the last nine months.This is because the rise in smartphone prices coupled with the increased the cost of mobile services after the last winter's tariff hikes is slowing down 4G subscriber additions and also forcing subscribers to use less data, say analysts.They added that while telecom as an essential service has been relatively resilient, high inflation is starting to hurt consumption demand across cat