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Summit Internet
For Callex customers

Reviewing Your Callex Phone Lines, SIP Trunks or Internet? Talk to an Independent, Business-Only Carrier.

Summit Internet brings your business internet, phones, inbound numbers and mobiles onto one network and one bill, and ports your existing numbers across.

Get a Quote Call 1300 049 749

Switching from Callex?

Book a call with a Summit switching specialist

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When suits for a call?
Would rather talk now? Call 1300 049 749

Overview

Callex's website describes it as a full-service telecommunications provider for Australian businesses. It says it started in 2002 as a prepaid calling card provider and has since grown into a post-paid voice and internet provider, offering fixed phone lines, a business SIP trunk service, 13, 1300 and 1800 inbound numbers, NBN, mobile phone plans and mobile broadband.

Businesses review their provider for ordinary reasons: a contract is ending, the office is moving, the old phone lines need replacing, or they want internet and phones from one carrier that deals only with businesses.

Summit offers business nbn with a static IP, Ethernet over fibre, fixed wireless across Melbourne and regional Victoria, SIP trunks, a cloud phone system, Microsoft Teams Calling, 1300 and 1800 numbers and business mobile plans, all on a network we build, own and operate. Summit Internet is an independent carrier and is not affiliated with Callex.

How Summit Helps

  • A Business-Only Carrier

    Summit does not sell residential services. Every plan and support process is built around what businesses need, and we have been doing it for 26 years.

  • SIP Trunks for the Phone System You Already Own

    If your business runs its own phone system, SIP trunks start from 2 channels and scale up or down as your call volumes change.

  • A Cloud Phone System When You Are Ready to Move On

    If you are replacing old phone lines or an ageing PBX, Hosted PBX starts from $10 per user per month with every feature included: auto attendant, ring groups, call queues, voicemail to email, call recording and mobile and desktop apps. We can preconfigure your handsets and ship them to you.

  • Bring Your 1300 and 1800 Numbers

    Your inbound 1300 and 1800 numbers can be ported to Summit, along with your existing local numbers. We also offer fax to email and on-hold messaging.

  • Business Internet With a Static IP

    Business nbn comes with a static IP included, with speeds up to 2000/500 Mbps on full-fibre nbn. For sites that need dedicated capacity, we offer Ethernet over fibre.

  • Voice Prioritised on Your Own Connection

    When your internet connection is also with Summit, voice traffic is prioritised across it, and your internet, phones and mobiles arrive on one bill.

  • Backup and Mobile on the Same Account

    4G Backup fails over automatically to Australia's biggest mobile network, with 98.8% population coverage, and fails back when your main link returns. Business mobile SIM plans sit on the same account.

  • Fixed Wireless in Melbourne and Regional Victoria

    If your premises is in our footprint, fixed wireless runs across 500+ suburbs with symmetric speeds from 10 Mbps up to 10 Gbps, installed in 10 business days or your first month is free.

How It Works

  1. 1 Tell us what you have

    Send us a recent bill or a list of your phone lines, inbound numbers, SIP channels, internet services and mobiles, and when your agreement ends.

  2. 2 Get a clear proposal

    We recommend the right mix of internet, phone system or SIP trunks and mobile, and show you what moves and when.

  3. 3 Install and set up

    We connect your internet and configure your phone system or SIP trunks, with handsets preconfigured if you need them.

  4. 4 Port your numbers

    We lodge the port for your local and 1300 or 1800 numbers. Keep your Callex services active until the port completes, because only active numbers can be ported. The ACMA says single local numbers generally port in 8 to 15 days, and multi-number ports can take up to 30 days.

  5. 5 Cancel the old services

    Once your numbers are live with Summit and everything is tested, you cancel your remaining Callex services.

Talk to an expert

Thinking about leaving Callex?

Book a short call with a switching specialist. Tell us what you have today and when your contract ends, and we will tell you what moving to Summit involves and whether it is worth it.

Book a call with a specialist Call 1300 049 749

Why Callex Customers Choose Summit

  • 01

    One Carrier for Internet and Phones

    Summit runs the internet connection and the voice service, so there is one provider to call and one bill to read.

  • 02

    Our Own Network

    We build, own and operate our network, with Points of Presence in NEXTDC data centres and DDoS protection as standard.

  • 03

    In Business Since 2000

    Summit holds ACMA Carrier Licence #388 and has served Australian businesses for 26 years.

  • 04

    Room to Grow

    Start with a few SIP channels or a handful of Hosted PBX users and add more as you hire, open new sites or move to Microsoft Teams Calling.

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Why Australian Businesses Choose Summit Internet

  • Great business and service provider. Highly recommended.

    Nabil Salameh

    last month

  • The Summit Team have always been a pleasure to work with; we highly recommend their services. Thank you for the continued support.

    Paul Braithwaite

    5 months ago

  • We recently moved our dental practice over to Summit for phone services, and the experience has been excellent from start to finish. The team has been responsive, professional, and incredibly helpful throughout the entire setup process. The transition was smooth, any issues were addressed promptly, and communication was always clear and efficient. Reliable phones and internet are essential for a busy practice like ours, and Summit has delivered exactly that. A special thank you to Michael for his patience and ongoing assistance during the transition. Highly recommend Summit to any business looking for reliable service and great customer support.Read more

    Elli Darabi

    5 months ago

  • The best service !!! Got issue fixed out by Greg ^^

    白大倫

    5 months ago

  • The whole team at Summit have been great from the initial onboarding to the rapid responses from Max when we need to make changes or additions to our services. Can't recommend them enough!

    Aaron Klaver

    5 months ago

  • As the I.T. Manager for Hydronic Systems Australia, Summit helps provide me and our companies with consistently stable Business Grade Internet, backed up by a dedicated Fixed Wireless Broadband connection. They also saved us a serious amount of money on our mobile phone bills. We have had no serious issues, and our business has been rock-solid under there great service. Highly Recommended.Read more

    James Paterson

    6 months ago

  • Prompt and efficient service. Highly recommend

    Elliot Bell

    6 months ago

  • We now use Summit across our real estate network. Great family business, reliable and their attention to detail is outstanding. Highly recommend.

    Ryan Bell

    6 months ago

  • As a reseller, we primarily work with Summit’s 4G services and have been very impressed. The plans are affordable, flexible, and well suited to our customers—especially for internet failover solutions. The sales and support teams are responsive and genuinely helpful, which is why we’re proud to partner with Summit Internet. We happily recommend them.Read more

    Mal Skinner

    6 months ago

  • After working with another ISP for several months to deliver a critical internet service for a major international sporting event, we were ultimately advised that the required upgrade was unlikely to be completed prior to event week. This left us facing a significant risk to service delivery. After exhausting all other options (and a few sleepless nights) we came across Summit Internet. From the initial conversation, Allan immediately understood the severity of the situation and quickly engaged his technical delivery team. Michael “Radar” was on site within days to assess and finalise a solution. Despite challenging conditions, including large trees and other obstructions, he worked tirelessly to design and implement an alternative approach. Leveraging an adjacent building, a temporary NBN connection, and a wireless link into the comms room, the solution was delivered within 24 hours of the initial site visit. Not only was the outcome faster than expected, but it was also more cost effective and delivered higher speeds than originally promised by the previous ISP. Over the course of the event, the service handled terabytes of data and supported hundreds of concurrent users without a single speed or performance issue. I cannot thank Summit Internet, particularly Allan and Radar enough for their exceptional service, technical expertise, and commitment to delivering under pressure. Highly recommended.Read more

    Adam Hastie

    6 months ago

  • Fausto and the staff at Summit are amazing. We have had nothing but fantastic service from start up to problem solving issues. The system is easy to use. Would highly recommend this service provider.

    Jo Bodhankar

    6 months ago

  • Summit internet recently set my small business up with a local land line number and a soft phone that runs off an app on my mobile - getting my personal phone number off the internet and being able to distinguish between business and personal calls is a game changer. Whole process took less than a week, and is super cost effective. Highly recommend.Read more

    Alex Holly

    8 months ago

Reviews from Google. Read all reviews on Google

Frequently asked questions

Is Summit Internet part of Callex?
No. Summit Internet is an independent Australian carrier holding ACMA Carrier Licence #388. We are not affiliated with Callex.
Why switch if my Callex service is working?
If your current services do everything your business needs, there may be no reason to switch. Businesses usually talk to us when a contract is ending, when they are moving office, when they want to replace old phone lines with a cloud phone system, or when they want internet and phones from one business-only carrier.
Will I have to pay to break my contract?
That depends on your agreement with Callex. Check your contract terms before you switch, and where possible time the move to your contract end date. We can plan the cutover around that date.
Can I keep my phone numbers?
Yes, eligible local numbers and 1300 and 1800 numbers can be ported to Summit. Keep your Callex services active until the port completes, because only active numbers can be ported.
How long does number porting take?
The ACMA says single local numbers generally port in 8 to 15 days, and ports involving multiple numbers can take up to 30 days. We will keep you updated through the process.
Can I keep my existing phone system?
Often, yes. If your phone system supports SIP, we can connect it with SIP trunks. If it is due for replacement, Hosted PBX removes the need for on-site hardware.
Do you offer business nbn?
Yes. Business nbn is available nationally with a static IP included, and speeds up to 2000/500 Mbps on full-fibre nbn.
Can you also move our mobiles?
Yes. We offer business mobile SIM plans, so your mobiles can sit on the same bill as your internet and phones.
Do you sell residential services?
No. Summit is business-only and does not sell residential services.
Get started

Ready to Review Your Callex Services?

Tell us what you have today and we will show you how it moves to Summit.

Call 1300 049 749 · Mon-Fri 9AM-5PM AEST

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