Elastic capacity
Burst channels for busy periods without paying for them all year.
Business phones
SIP trunking
Keep your phone system and connect it to the phone network over the internet. These connections are called SIP trunks. We help you keep your numbers, choose capacity for busy times and set up backup call routing.
Get in touch
Free initial phone discussion. Support hours and charges.
Why SIP trunks with Telco Concepts
Disaster recovery
Send calls automatically to mobiles, a call menu or another site during an outage.
Australian numbering
Local and 1300/1800 numbers, including blocks of direct-dial numbers and number transfers.
Secure SIP
TLS and SRTP, IP allow-lists and anti-fraud controls.
Call records
Per-number reporting, usage analytics and exportable call records.
Works with your PBX
Yeastar, Webex Calling, 3CX and other systems that support SIP internet calling, plus gateways for older phone systems.
How we implement it
- 1
Assess and plan
Audit existing lines and numbers, and set channel and failover requirements.
- 2
Port and provision
Lodge ports, provision trunks and set routing rules.
- 3
Test
Inbound and outbound test matrix, caller ID checks, and an emergency call test where permitted.
- 4
Go live
Cutover with live monitoring and a rollback plan ready.
Common questions
Are month-to-month services available?
SIP trunks and cloud phone systems are available month-to-month. For other services, any minimum term is set out in writing in your quote before you agree.
Can we keep our numbers?
Yes. Local and 1300/1800 numbers can be ported. We stage the cutover and test live calls before sign-off.
How many calls can we make at the same time?
Each channel carries one call at a time. We help you choose everyday capacity and arrange extra capacity for busy periods.
Do you support secure SIP?
Yes, where your phone system supports it. TLS protects call setup and SRTP encrypts call audio. We also restrict connections to approved IP addresses and apply fraud controls.
How are 000 calls handled?
We check caller ID presentation and route 000 over the trunk. An emergency test is part of the cutover plan where permitted.