Can telemarketing companies use VoIP?

Unreliable, the VoIP phone is unstable, the external numbers are all virtual, and the connection rate is low. Telemarketing now faces a problem, too many calls are blocked.

The phone number is blocked, basically because the phone is detected as high-frequency outgoing call, the outgoing call frequency is too high, and the total number of calls is too many.

In order to solve the problem of phone card blocking, we must solve the problem of high-frequency outgoing call detection. Actually, that's what we always do. What we do is to switch telephone lines. After the line is processed, the number call record is in the called state, and the number blocking cannot be detected. What's more, the called party receives his own real phone number, so there is no problem in calling back or saving the number to contact again.