The service offered by telephone companies allowing creating the telephone numbers on the same line where the existing number is. The call tone for every number will be different from another. There is also an opportunity to program a custom ring tone for the incoming call.
Personal SIP/IAX/POTS/SMS Gateway services for A-Z calls. Pre-paid credit. Direct SIP/IAX calls or calls via POTS gateway using analog/mobile lines + pin. Callshop solution and DIDS from all regions in Czech Republic available.