Create Your SIPcity Business VoIP Account. No commitments or long-term contracts. Signing up for a SIPcity Business VoIP account is fast and free. Simple SetupHave a handset or soft phone? Get set up in minutes. You can add numbers and make calls straight away. No Credit ChecksSIPcity is a pre-paid service so top-up your account and start using the Cloud PBX and making calls straight away. Free Cloud PBX UsageJust pay for your numbers and your calling. All the features of our Cloud PBX are yours to use free.