Nicola Bulley's partner believes her phone on the bench could be just a 'decoy' as he said he remains '100% sure' she isn't in the river.
The missing mum's mobile was discovered still on a work call when it was found by a dog walker two weeks ago.
The 45-year-old was last seen walking pet Willow after dropping her daughters off at school in the small village of St Michaels on Wyre, Lancashire on January 27. Police believe there is no criminal element.