Voice Services & Solutions
At Kastel Technologies, we are aware of the critical role that effective communication, regardless of size, plays in the success of companies. We provide you with a range of revolutionary solutions that are intended to improve your communication experience because of our constant commitment to innovation and outstanding knowledge of IT networking.
Welcome to Kastel Technologies – Your Gateway to Cutting-Edge Communication Solutions!
Why Choose Our Voice Technologies?
Expertise in VOIP:

Explore a new dimension of voice communication with our state-of-the-art Voice over Internet Protocol (VOIP) solutions, meticulously crafted for businesses seeking efficiency and clarity.
Cloud PBX for the Modern Workplace:

Embrace the future of communication with our Cloud PBX services. Experience the freedom and flexibility of cloud-based telephony solutions tailored to meet the demands of the modern workplace.
Expertise in SIP:

In response to the Australian government's directive to shift from PSTN/ISDN, Kastel Technologies introduces our SIP trunk service a comprehensive solution.
Kastel Unlimited Business SIP Plan
Save up to 75% off your Telco Costs!
For companies hoping to get better functionality out of their business phone systems while cutting their telecom expenses significantly, Kastel SIP Trunks are the ideal VoIP solution. They can be set up to function as a stand-alone IP phone or linked to an already-installed on-site PBX system.
99% Uptime
Call Rates: Minimum Monthly Cost | SIP PAYG (Pay As You Go) | SIP 1 Unlimited | SIP 5 Unlimited | SIP 10 Unlimited |
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Setup/Installation | $99 | $39.95 | ||
Monthly Costs | $9.95 | $49.95/per calendar month | $199.95/per calendar month | $499.95/per calendar month |
Standard National or Local Landline Call | 0.10c | Included | 1 to 100 | 1 to 100 |
Include 1 DID number | 0 | 0 | Included | Included |
Standard National Mobile Call | 0.15c | Included | Included | Included |
Cost of a 13/1300 Number Call | $0.30 | $0.25 | $0.25 | $0.25 |
Cost of a 18/1800 Number Call | Included | Included | Included | Included |
Incoming Numbers | 1 to 100 Incoming Numbers | 1 to 100 Incoming Numbers | 1 to 100 Incoming Numbers | 1 to 100 Incoming Numbers |
Inbound calls to your 1300 Numbers | 7¢ per min | 7¢ per min | 7¢ per min | 7¢ per min |
Inbound calls to your 1800 Numbers | 9¢ per min | 9¢ per min | 9¢ per min | 9¢ per min |
International Calls | Standard – See Internal Rates Table | Standard – See Internal Rates Table | Standard – See Internal Rates Table | Standard – See Internal Rates Table |
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Use your existing number or create a new one!
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Experience the Digital call clarity. No more static interference
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Cost Savings & Immediate ROI.
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Unified Communications. ...Compatibility with Microsoft 365, 3CX, and other IP PBX systems
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Mobility. ...Make or take a call from anywhere with data service.
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Portability and Scalability (Auto Failover*)
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Network Consolidation. ...
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No More Physical Infrastructure. ...
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No Costly Hardware Investments.
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separate phone line with a unique phone number
*Automatic failover requires additional lines and setup. Talk to us about a solution.
Business Cloud PBX Solution


Are you trying to find a basic, low-cost PBX solution? Considering replacing the outdated ISDN/Copper line phone system? In regards to the size of your organization, we offer a solution for you. We collaborate with top unified communication providers to give your company the best results at affordable costs.

Get in Touch
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