IP telephony, your feedback?

Question

Telephony

We are now using ip-telephony from one of the industry leaders, it also has CRM, but we have so far integrated with another CRM the quality, to be honest, is not particularly satisfactory. Constant micro-interruptions during a conversation (packet loss) when we call outgoing numbers are different (ours is one of Moscow).
What ip-telephony, from which companies do you use and are you satisfied with the quality and which ones did you use that were dissatisfied?
Do not offer to raise your own, we are still not an it-company.

Answer 1

From April 1, all these cloud telephony resellers will have an increase in the price of calls to the Russian Federation)))
My contacts are in the profile. If there is good traffic, we'll set everything up for free and provide telephony at prices below the 15% discount.

Answer 2

We use MTT. Quality-price suits.
Of the pluses, you can choose to set the number from which calls will be made.

Answer 3

Recently I was puzzled by the choice of a provider, or rather a change. I was not at all satisfied with the quality of the mango. Long searched. Attracted www.new-tel.net primarily per-second billing and the ability to test everything for free. We have been actively using it for several months now, we like the connection and we like the convenient integration with crm.