Vonage vs Nextiva

I have been with Vonage since 2014. I am ready to leave. Their customer service has diminished greatly. The lines dropped a lot. Then they want to nick and dime you for features. Their billing is not consistent. You pay one price and you look up the next month and it does not match the price on your invoice. They outsourced the customer service call center it is impossible to get someone on the phone even before the pandemic

Unreliable and bad customer service!! I had Nextiva's virtual fax service and I had several clients fax me docs that I did never received using Nextiva. When I called Nextiva to complain they sent me a test fax that always went through so they denied it was their fault - but it continued to happen at random. When I did receive faxes - sometimes I received them an hour or more after the client sent them. When I cancelled my service they refused to give me a refund for the time of the service i pre-paid for but did not use.