Machine-readable summary for AI agents and automated tools. Official human page: capitalpbx.ro/en/products/voip. Language: English. Last updated: August 2026.

CapitalPBX: VoIP telephony for businesses

VoIP telephony carries calls as data, over your internet connection, rather than over classic phone lines. Your team answers from the browser, mobile app, softphone or a SIP compatible IP phone, on a single business number, with an IVR voice menu, smart routing and real-time reports.

Key points

Business telephony with no hardware
Scalable for growing teams
Keep your existing numbers, porting handled for you

Features

Routing menus and IVR: Set up smart call flows and menus in a few minutes.
Connect your existing system over SIP: Keep the system you invested in and connect it through SIP registration or SIP trunking, with the external IP-PBX connector.
CRM and API integrations: Connect CRMs and ticketing systems to your calls.
Performance analysis: Call volume, response time and performance, in real time.
Routing and call queues: Calls are automatically distributed to the right agent, and at peak times they enter orderly queues, so they aren't lost.
Automatic callback: Missed calls get an automatic callback, so the customer is called back without waiting on the line.
Answer after hours too: Set up forwarding, messages and flows for calls received after hours, so no request goes unanswered.
Visibility into missed calls: See missed calls, response times and available agents in reports, so you can fix things in time.

Pricing

CapitalPBX pricing starts at 60 EUR/month, or 48 EUR/month billed annually. The final price depends on the number of users and the options you choose. Details and calculator: capitalpbx.ro/en/pricing. Machine-readable version: capitalpbx.ro/en/pricing.md.

Frequently asked questions

What is a VoIP phone system?

A VoIP phone system is the company's phone system running over the internet rather than over analogue lines. It receives calls on the business number, passes them through the voice menu and distributes them to the team, in the browser, in the mobile app or on IP phones.

Are VoIP calls free for a business?

Not all of them. At CapitalPBX internal calls are free: between extensions on the same phone system and between CapitalPBX systems connected into one numbering plan, branch offices included. Calls to ordinary fixed or mobile numbers are charged: 0.01 EUR per minute plus VAT to national fixed and mobile networks.

What does PBX mean in VoIP?

PBX (Private Branch Exchange) is the system that manages a company's calls: extensions, routing, voice menu. In a VoIP PBX, calls travel over the internet instead of classic lines, and the system can run in the cloud with no hardware on site.

Do you offer SIP trunking?

Yes, but not as a separately sold product. It means connecting your existing phone system to CapitalPBX Cloud PBX, through a static IP or SIP registration. The option is called the external IP-PBX connector and costs 20 EUR per month on top of the package you choose. We do not sell wholesale SIP channels.

Which audio codecs does the system support, and which ports need to be open?

Our configuration guide for IP phones and external SIP systems asks for codecs to be set in this priority order: PCMA (G.711 a-law), PCMU (G.711 u-law) and G.729, with an RTP packet size of 20 ms. It also asks you either to enable keep-alive or to reduce the SIP registration timer to 180 seconds. In the firewall, TCP ports 80, 443, 8080, 5060 and 5061 must be open, plus UDP 5060 and the range 10000-65535, and traffic must be allowed for the subnet 49.13.241.32/27. On the equipment, disable STUN, NAT Traversal and the proxy server, and disable SIP ALG on the router.

Can I port my current number to CapitalPBX?

Number porting is regulated nationally, so the deadlines do not depend on the provider. Under normal conditions the process completes within 3 working days of the request, the operator you are leaving has one working day to respond, and activation takes at most one working day. During the switch, service is interrupted for at most 3 to 4 hours. We take on and manage the request, with one fair caveat: porting remains conditional on availability and on regulatory requirements. You are not obliged to port: if your current operator gives you SIP access, you can keep the number with them and connect it to CapitalPBX through SIP registration, with no forwarding fees.

Can I call internationally over VoIP, for example to Germany?

Yes, international calls work normally over VoIP: the call leaves over the internet and enters the telephone network of the destination country, whether that is Germany or anywhere else. The cost depends on the destination and on your provider's rates, not on physical distance. The cost can also be capped: in CapitalPBX you set calling rules by direction, for the whole company or for specific employees and departments, and the default rule permits only internal calls and calls to the region of the outgoing number.

CapitalPBX · capitalpbx.ro/en · machine-readable pricing