4.8/5 on Capterra. 
SIP TRUNKING
One SIP trunk,
unlimited global connections
Connect to the world seamlessly with an enterprise-grade
SIP trunk. Enjoy instant set-up and HD calling.
Stay local or go international
Connect with customers across the world via completely secure and internationally compliant SIP lines
Unlimited channels—everywhere
Network across nations with ease, as per your scale and flexibility.
- Deploy SIP connections anywhere in the world
- Scale up or down without worrying about hefty costs
- Integrate your favourite tools to amp up your solution
Enterprise-grade security and reliability
Your safety is our priority. Enjoy multi-layer security and maximum uptime.
- Guaranteed 99.99% uptime for flawless conversations
- Multiple levels of firewalls for complete data privacy
- High-grade encryption to protect sensitive information
A cloud-powered communication system
Move sales and support teams to a single SIP network.
- Collaborate on the go with HD voice calls and SMSes
- Increase productivity with smart tools and features
- Track agent performance on our user-friendly portal
Unlimited channels—everywhere
Network across nations with ease, as per your scale and flexibility.
- Deploy SIP connections anywhere in the world
- Scale up or down without worrying about hefty costs
- Integrate your favourite tools to amp up your solution
Enterprise-grade security and reliability
Your safety is our priority. Enjoy multi-layer security and maximum uptime.
- Guaranteed 99.99% uptime for flawless conversations
- Multiple levels of firewalls for complete data privacy
- High-grade encryption to protect sensitive information
A cloud-powered communication system
Move sales and support teams to a single SIP network.
- Collaborate on the go with HD voice calls and SMSes
- Increase productivity with smart tools and features
- Track agent performance on our user-friendly portal
Worldwide connectivity, world-class operations
SIPs connect your existing PBX to as many worldwide channels as you need using the Internet, allowing you to make international calls swiftly and cheaply.
All you need to connect to the world is a SIP trunk. Get yours today!
Take your business everywhere with SIP trunking
Our simple yet sophisticated solutions make your dreams totally achievable. Here’s how you can do wonders with SIP
SIP trunking = true cost savings
- One pocket-friendly payment plan for both voice and SMS solutions
- A robust, all-inclusive SIP infrastructure—no extra services required
- No hidden costs with transparent and reliable billing every time
Become a globally recognised brand
- Connect with clients anywhere they are with SIP. No exception
- Call from numbers with local area codes for your target country
- Get complete reliability and HD quality audio
SIP features to set you apart
Free phone numbers
Give your global customers a reliable toll-free helpline number that supports high-definition international calling.
Local numbers
Establish a strong area presence for your business with local number codes, regardless of your physical location.
Vanity numbers
Get a brandable alphanumeric number for your business. They are easy to memorise and customers can reflexively dial them.
IP whitelisting
Whitelist Acefone’s global range of IP addresses to automatically switch to another IP in case of any unexpected events.
Toll fraud protection
Enjoy a high level of security and privacy, and rest assured against common telecom fraud. Always keep your data safe.
Alert triggers
Receive alert triggers if anything goes wrong in your SIP infrastructure. We ensure security on standby at all times.
Guaranteed security for your education communications
Enjoy enterprise-grade data security with Acefone
We comply with standard data privacy and safety regulations such as GDPR, HIPAA, etc. Your security is our concern.
All your favourite apps together
Flexible integrations with powerful tools. Look after every business need on one platform.
Office 365
Salesforce
Microsoft Teams
Google Contacts
Dynamics 365
G-Suite
Freshdesk
Sugar CRM
Vtiger CRM
Zoho CRM
Bullhorn
Acefone
Bitrix24
HubSpot CRM
Pipedrive
Freshsales
Google Sheets
Zendesk
LeadSquared CRM
Microsoft Azure
Resource library
Learn how to make the most of your business communication system.
Plans & Pricing
Acefone guarantees the best rates in the market
Bill Monthly
Standard
Best for indivisuals
£7
user/month*
Popular
Business
Best for growing teams
£13
user/month*
Premium
Best for large teams or enterprises
£19
user/month*
Bill Anually
Standard
Best for Indivisuals
7
user/month*
Popular
Business
Best for growing teams
13
user/month*
Premium
Best for large teams
19
user/month*
Standard
Best for Indivisuals
27
user/month*
Popular
Business
Best for growing teams
93
user/month*
Premium
Best for large teams
59
user/month*
Found a better price? Let us know -
we'll beat it by 10%
Frequently asked questions
You have queries, we have answers
What Is SIP?
SIP (Session Initiation Protocol) is a technology used to establish, modify and eventually terminate connections between two or more VoIP participants—no matter where they are in the world. SIP lets you reap the advantages of VoIP such as reduced costs and minimal lags and downtimes.
What are SIP trunks used for?
While SIP trunks can have several applications, they are primarily used to facilitate Internet-enabled high quality voice calls.
Is SIP the same as VoIP?
VoIP is an umbrella term that refers to every Internet-based call. SIP trunking is a technology that connects traditional telephony devices to the Internet to enhance their functionality.
Do my agents need technical expertise to understand SIP?
Not at all. We provide simple set-up instructions and a user-friendly portal for day-to-day management. Our support representatives are also happy to walk you through configuration and get you up and running in no time.
Still in doubt? Please drop you question
Still in doubt? Drop your question in the box below and we’ll get back to you
