Residents who use the system to book a ride experience wait times of between 30 minutes to two hours.

Ottawa City Council members' voicemail and email inboxes are being filled to capacity as Para Transpo users stage a protest, pushing for improvements to Para Transpo's system.

Currently, residents can only phone into Ottawa's accessible transit service, with users saying it takes between 30 minutes to two hours to book a a ride to their destination.

The Healthy Transportation Coalition says it's been waiting years for an online booking system, like an app for smartphones, to be introduced.

The group is holding a phone blitz until August 9, each day calling different members of council members in an attempt to block up their phones and emails.

"There's always opportunity for the system to improve and for city council to look at it from a point of view of somebody who is trying to live a life," said Kyle Humphrey, Para Transpo user.

"There's a huge elderly population that uses Para Transpo," Humphrey added. "As it grows, Para Transpo still has the same number of buses, still the same number of call takers, still the same number of all these services and it hasn't been upgraded accordingly. That's what we are looking for, equity."

The group wants an online booking system to be in place by the end of 2020.