CTV News has learned that a 911 call was made to Calgary Public Safety Communications (PSC) months before a man was dumped outside a Regina hospital. He had been beaten, burned, emaciated, and mutilated.

Dustin Paxton has been charged with assault and forcible confinement in connection to the case.

Shortly before his disappearance, the alleged victim and Paxton were roommates in Calgary.

On February 28, a call alleging an assault was made to 911 in Calgary at 6:30 p.m. 

No details about who made the call, or what was said, are being released.

But Calgary Police Service Inspector Monty Sparrow confirmed police were never dispatched to the call and investigators only learned about it last week.

"Through our investigation we were made aware of this call and we contacted the PSC to make them aware as well," Sparrow told CTV News.

PSC Manager Steve Dongworth says the call, and how it was handled, is now under investigation.

"We take it very seriously especially when we find there is some question to how well things are handled. We will get to the bottom of this and report those findings back to the Calgary Police Service," said Dongworth.

The results of the 911 call centre investigation are expected to be given to police next week.

Family members say if it reveals that anything wasn't handled correctly by the call taker, changes need to be made.

Calgary's 911 call centre has been under repeated scrutiny for its handling of calls in the last year.

An investigation by CTV News revealed a number of high profile incidents in which police officers and emergency crews weren't dispatched to calls or were sent to the wrong addresses.

A recommendation was since been made to have active members of the police service inside the centre at all times.

That change will be in effect starting in September.

With files from Tara Robinson, Chris Bassett, Ryan Sang, and Stephen Andrew.