Can RingCentral provide development consultant service? If yes, whom should we contact with and how much RingCentral charge?

Hi Carrie,

If you need application development technical supports, you can post your question right here in this forum. If your questions contain sensitive information which you don't want to share in a public forum, you can send your questions on a support ticket for our developer support team to respond.

All application development supports and consultant services related to RingCentral platform are free of charge.

As per this link https://forums.developers.ringcentral.com/questions/398/developer-support-professional-services.html

RingCentral does have a Development Professional Services team and you can contact them for consultation