Low Cost Enterprise SIP
🔌

SIP Trunking for Enterprise
99.9% Uptime

Plug your current PBX into our global network and pay only low per-minute rates, with unlimited channels included.

$0.008

/ min

Total

$0.08

Lowest Rates

Crystal Clear Audio

Setup in Minutes

Always On Support

What Makes SIP Trunking Worth It?

For companies that operate across borders, SIP Trunking has become a budget essential. Legacy phone systems tend to cost a lot and bend slowly when things change. VoIP flips that, trimming your spend while lifting call quality and adding features.

Where You Win

Lower Bills

Cut as much as 90% off what legacy systems charge.

Grows With You

Bump up capacity on the spot as your team expands.

Work Anywhere

Connect from any device, wherever you happen to be.

Clear Reporting

Watch the numbers and fine tune how your team communicates.

How Setup Goes

Built on modern VoIP technology, our platform brings you world-class business calling. There is no special hardware to buy and nothing tricky to install. Just sign in and you are running.

Getting the Most From It

To squeeze the full value out of your plan, keep a solid internet connection, coach your team on smart habits, and lean on our reporting to keep improving over time.

Why Teams Pick Intercalling

You get enterprise-grade infrastructure, round the clock technical help, billing you can read at a glance, and SLAs we stand behind. The platform is tuned for high-volume calling.

SIP Trunking Providers vs. Browser Based Calling: What Businesses Actually Need

In short

SIP trunking providers route business phone calls over the internet to a PBX, usually charging per channel plus per minute and requiring hardware or VoIP software to set up. If you only need outbound calls or a handful of inbound lines, Intercalling offers the same internet voice without a SIP trunk, a PBX, or any installation, billed pay as you go directly in your browser.

What a SIP trunking provider does, and when you need one

A SIP trunking provider gives your existing phone system a path to the public network over IP, replacing physical phone lines with virtual channels. Each channel handles one concurrent call, so a 10 seat support team typically buys 10 or more channels. Pricing usually combines a monthly per channel fee with per minute or bundled minute rates, plus the cost of running a compatible PBX such as Asterisk, FreePBX, or 3CX.

SIP trunks make sense when you already operate a PBX, need dozens of simultaneous lines, or want to keep an existing phone number infrastructure. They are less practical for small teams, remote workers, or anyone who simply wants to place calls without provisioning servers and SIP credentials.

The browser based alternative for outbound and light inbound calling

Intercalling runs in Chrome, Safari, Edge, and Firefox with no app download, no SIM card, and no SIP configuration. Outbound calls need no phone number at all and are pay as you go, billed per minute, so there is no per channel commitment to forecast. Calls are end to end encrypted, which suits business and privacy sensitive use.

If you also need to receive calls, you can add a US or Canada digital number for roughly 2.14 to 5 dollars per month. That covers the common case of a small business or distributed team that wants reliable internet calling without standing up a PBX or signing a SIP trunk contract.

Frequently asked questions

Is Intercalling a SIP trunking provider?+

No. Intercalling is a browser based calling service, not a SIP trunk. It does not connect to your PBX or sell SIP channels. Instead it places and receives calls directly in your web browser, so there is no SIP gateway, server, or trunk to configure.

How is pricing different from a SIP trunk?+

SIP trunks typically charge a monthly fee per concurrent channel plus minutes. Intercalling outbound calling is pure pay as you go, billed per minute with no channel fees. To receive calls you add a US or Canada number for about 2.14 to 5 dollars per month.

Do I need a phone number or hardware to start?+

No. Outbound calls need no phone number, no SIM card, and no app or hardware. You only add a digital number if you want to receive inbound calls.

When should I choose a SIP trunk instead?+

Choose a SIP trunking provider when you already run a PBX, need many simultaneous channels, or must integrate with legacy on premise phone equipment. For outbound calling or a few inbound lines without that infrastructure, Intercalling is simpler and faster to deploy.

Last reviewed June 2026Reviewed by the Intercalling calling teamDialing rules cross checked against ITU international dialing procedures
More calling routes

Related international calling guides

Other routes our customers compare with this one. Tap any guide to see dialing rules, country codes, and rates.

Call Sip Over Websocket
Call Bpo Voip Philippines
Call Business Voip Jordan
Call Business Voip Kenya
Call Business Voip Nigeria
Call Business Voip Poland
Call Business Voip South Korea
Call Business Voip Switzerland
Call Business Voip Thailand
Call Business Voip Uae
Call Call India from Dubai Voip
Call Consulting Firm International Calls
Call Crm Integration Voip
Call Discord Vs Voip For Long Distance
See all international calling routes