SIP Trunking | Telcoinabox

What is wholesale SIP Trunking?

Low cost, high quality calling for any phone system

Easily enable Australian calling for any IP-PBX phone system, Contact Center, or Unified Communications (UCaaS) platform.

Telcoinabox SIP trunks are compatible with all major vendors including 3CX, Avaya, Genesys, Webex and Teams.

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Benefits of Telcoinabox SIP Trunks

Teams & Webex

Provide localised PSTN replacement and phone numbers in Microsoft Teams and Cisco Webex.

Number porting

Let customers keep their familiar phone numbers. Easily port local DID, toll-free or inbound services.

Next-gen network

Future-proof your telecom backbone with our all-IP voice network that spans Australia and NZ.

High quality

Leverage our high-availability voice network for crystal clear, low latency VoIP calling.

Wholesale rates

Reduce your Australian calling costs with our market-leading rates, direct from carrier.

Automation

Streamline SIP trunk provisioning and configuration with our self-serve portal or APIs.

Frequently asked questions (FAQs)

Is your SIP service compatible with my current PBX platform?

Telcoinabox SIP services interoperate with most well-known IP-PBX and UCaaS platforms. Some popular brands include 3CX, Avaya, Asterisk, Yeastar, Mitel, Netsapiens, Vodia, Samsung, Genesys, Teams and Webex.

There are thousands of different solutions on the market, so we encourage you to complete your own validation testing.

What APIs or portals do you provide for managing trunks?

Trunk management is handled through the Telcoinabox OSS/BSS platform. We do not currently expose APIs for direct trunk management.

What service levels do you provide?

Telcoinabox does not provide a formal SLA for SIP trunks, however our target availability is 99.999%.

All our SIP services are delivered on the Symbio network, which includes dual carrier redundancy in Australia, ensuring greater continuity and resilience.

What is the Symbio network?

The Symbio Network is Australia’s only dual carrier voice network, with geographic diversity and redundancy designed to support millions of concurrent calls.

It is trusted by leading service providers across Australia and New Zealand. Beyond Australia, Symbio also operates in Singapore and Malaysia, extending our carrier-grade network presence across Asia Pacific.