Vodafone has reported Telstra to the ACCC over alleged misleading mobile coverage claims.The issue revolves around how signal strength is measured, with Vodafone claiming Telstra's coverage claims are enhanced with external antennas.Telstra confirmed the use of external antennas but denied misleading the public about the size of its network.Vodafone is seeking corrective action from Telstra and considering legal action to address the alleged misleading conduct.