SIP Trunking Plans


SIP PAYG 12mth

SIP Trunk PAYG 12mth

  • Teams or PBX
  • Local calls 10c ea untimed
  • National calls 10c ea untimed
  • Calls to Mobiles 15c per min
  • 13/1300 calls 33c ea
  • Australian based support
  • Minimum Contract Charge $140

$10 /mth
Upfront: $20

Ex Gst

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SIP Unlimited 12mth

SIP Unlimited 12Mth

  • Teams or PBX
  • Local calls included
  • National calls included
  • Calls to Mobiles included
  • 13/1300 calls 33c ea
  • Australian based support
  • Minimum Contract Charge $720

$50 /mth
Upfront: $20

Ex Gst

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Free SIP Channel Offer. Take any 100Mbps + Business Fibre service and get up to 100 SIP PAYG channels included at no extra charge.

DID Numbers

Individual NumbersPort in Simple100 Number Range Port
Setup70 cents$50$350
MRC70 cents70 cents70 cents
Total Setup$0$0$0
Monthly Total$0$0$0

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SIP - The ISDN alternative for on-premises Phone Systems

SIP provides cost effective voice rates, especially when compared to legacy ISDN. Your SIP voice channels can be combined with existing data and internet access links. SIP trunks will connect directly to on-premises UC and late model PABX systems. Older PABX's can usually interface using gateways too.

Options for older on-premises systems include:

  • Used an existing embedded IP card
  • Add an IP card
  • Add an ISDN gateway

Alternately an MS Teams Phone System or Cloud Business Phone Hosted PBX can be used to replace the phone system if it's too old.

Unlike ISDN, SIP is extremely scalable, and a cost-effective way to ensure your current infrastructure investment is fully optimised. If you’re not ready to move to Cloud Business Phone you can maintain your existing PBX and use a CommsChoice SIP Gateway to establish, manage and terminate calls to any network globally.

To keep your business running, SIP provides enhanced resilience and in the event of a failure can re-route using alternate, redundant links – including 4G services.

Whether you’re hearing about SIP for the first time, or you’re already planning to transform your business communications, just follow these steps.

1. Contact CommsChoice and order the number of ISDN lines you need to replace.
2. We liaise with your PBX maintainer and arrange number porting and help coordinate any hardware changes needed to run SIP Trunks
3. On the day of your number port, we liaise closely with your on site PBX maintainer to ensure the change over is as seamless as possible.
SIP is suitable for businesses not quite ready to make the move to Cloud Business Phone; those that want enhanced redundancy and a scalable, cost effective voice solution.


  • Highly scalable and you only pay for the lines you need
  • Greater redundancy than traditional phone lines
  • Significantly more cost effective and flexible than ISDN
  • Prepare for the NBN as copper services get disconnected
  • Only pay for the lines you need and the calls you make
  • Number availability in more than 6000 cities globally
  • 24/7 support manned by customer service focused engineers

CommsChoice SIP as ISDN replacement.


Married to your phone numbers? Number portability allows you to retain your existing numbers when switching providers.


SIP is a cost-effective way of ensuring your current infrastructure investment is fully optimised; delivering quick returns on your investment.


Order the lines you need now, and scale up (or down) quickly if required. SIP is the solution that grows with your business.


Only pay for the number of lines you need and the calls you make, saving you more.


With SIP you’re always online. Quickly divert your calls to alternative locations to safeguard your business in case of system failure.


24/7 support manned by customer service focused engineers.

Contact an Australian based Cloud Communications expert now