# Crazytel Knowledge Base - Full Article Index > Auto-generated index of published knowledge base articles at https://crazytel.com.au/knowledgebase/ > Crazytel: Australian VoIP provider - SIP trunks, CrazyPBX, SMS, softphones, 1300/1800 numbers. ## Account Management - [How to add an authorised contact - powers, limits, and verification](https://crazytel.com.au/knowledgebase/article/how-to-add-an-authorised-contact.md): Add an authorised contact in MyAccount under Account Management > Authorised Contact. They can act or speak for your account for support and verification, but cannot log in to the portal. ## CrazyAI - [Getting Started with CrazyAI](https://crazytel.com.au/knowledgebase/article/getting-started-with-crazyai.md): This guide covers the basic setup of CrazyAI. ## CrazyPBX - [CrazyPBX - Sign in to the Crazyphone App](https://crazytel.com.au/knowledgebase/article/crazypbx-crazyphone.md): This guide covers how to sign in to the Crazyphone application for Mobile or Desktop. - [CrazyPBX - Making a CrazyPBX Time Switch](https://crazytel.com.au/knowledgebase/article/crazypbx-timeswitch.md): Time Switches route calls to set destinations based on the time of day, or date range. Time Switches are commonly used to set up business hours, or Do Not Disturb hours. - [CrazyPBX - Making a CrazyPBX Speed Dial](https://crazytel.com.au/knowledgebase/article/crazypbx-speeddial.md): Speed dials act as phone number shortcuts. Speed Dials can be used to route to common internal CrazyPBX destinations, or external phone numbers. - [CrazyPBX - Making a CrazyPBX Ring Group](https://crazytel.com.au/knowledgebase/article/crazypbx-ringgroup.md): A Ring Group alerts multiple endpoint devices when a single number is called. This guide covers how to make and configure a Ring Group for CrazyPBX - [CrazyPBX - Making a CrazyPBX Manual Switch](https://crazytel.com.au/knowledgebase/article/crazypbx-manualswitch.md): A Manual Switch is a logic routing tool that allows CrazyPBX Extensions to swap routing between two (or more) set destinations. This guide covers how to make a Manual Switch. - [CrazyPBX - Making a CrazyPBX Call Queue](https://crazytel.com.au/knowledgebase/article/crazypbx-callqueue.md): Call Queues act as a First in First out ordered stack of calls. Calls wait until a CrazyPBX Extension is available, or the maximum queue time elapses. - [CrazyPBX - Making a CrazyPBX Autoattendant/IVR](https://crazytel.com.au/knowledgebase/article/crazypbx-IVR.md): IVRs/Auto Attendants are interactive menus that allow callers to pick a destination. This guide covers how to make one for your CrazyPBX. - [CrazyPBX - Making a CrazyPBX Announcement](https://crazytel.com.au/knowledgebase/article/crazypbx-announcement.md): This guide covers how to make a CrazyPBX Announcement. - [CrazyPBX - How to make a CrazyPBX Extension](https://crazytel.com.au/knowledgebase/article/crazypbx-extension.md): This guide covers how to make a CrazyPBX Extension, and what each option means. ## General - [CrazySPAM Call Guard - free to use, block spam, scam and telemarketer calls](https://crazytel.com.au/knowledgebase/article/crazyspam-call-guard.md): CrazySPAM Call Guard is free to use and does not cost anything. No monthly fee and no per-call charge. Turn on Call Guard to block spam, scam, telemarketer and international callers. - ["Unauthorised" on outbound calls using a verified caller ID](https://crazytel.com.au/knowledgebase/article/unauthorised-on-outbound-calls-using-a-verified-caller-id.md): Why some outbound calls using Verified Caller IDs fail. - [Can I use my existing modem or router with Crazytel?](https://crazytel.com.au/knowledgebase/article/using-existing-modem-or-router-with-crazytel.md): Can I use my existing modem or router with Crazytel on my home internet service? Yes, only if it is not a locked modem or locked router. A provider locked modem, carrier locked router, Telstra locked modem, Optus locked router, modem locked to current provider, or router locked to ISP will not work. Use Crazytel with an unlocked modem or router, SIP phone, ATA, or softphone when you switch from another provider. - [Common Virtual Mobile Number questions: VMN additional product, SIP Trunk, CrazyPBX, CIS, SMS, and CrazyPhone](https://crazytel.com.au/knowledgebase/article/common-virtual-mobile-number-questions.md): Common Virtual Mobile Number (VMN) questions. A Virtual Mobile Number is an additional product and add-on. You still need a SIP Trunk or CrazyPBX to make calls and receive calls. There is no Critical Information Summary (CIS) and no CIS for Virtual Mobile Numbers. Sending SMS is 5 cents (5c) per SMS. CrazyPhone unlimited SMS add-on is $4.95 a month for unlimited SMS to Australian numbers with the CrazyPhone app. - [Virtual Mobile Numbers for WhatsApp, WhatsApp Business, Telegram, Google, Banks, and 2FA](https://crazytel.com.au/knowledgebase/article/virtual-mobile-numbers-whatsapp-google-banks-2fa.md): Do Crazytel Virtual Mobile Numbers work with WhatsApp, WhatsApp Business, Google, banks, two factor authentication, 2FA, OTP SMS, and verification codes? The number supports SMS and voice. Acceptance is up to the third party. Crazytel cannot guarantee it. For picky services, buy a prepaid SIM from Telstra, Optus, or Vodafone, set it up, then port that number to Crazytel. Mobile numbers can be ported back out anytime to any Australian provider. Crazytel has no contracts. - [Crazyphone and other Softphone applications](https://crazytel.com.au/knowledgebase/article/softphones.md): The Crazyphone application, and recommended 3rd party softphone applications. - [Why Can't I Make Calls With Telstra Caller ID?](https://crazytel.com.au/knowledgebase/article/why-cant-i-make-calls.md) - [Porting a number to Crazytel](https://crazytel.com.au/knowledgebase/article/porting-a-number-to-crazytel.md): Porting a number to Crazytel: keep your existing mobile, landline, 1300 or 1800 number. Free port-in, timeframes by number type, and the step-by-step Porting Manager application. - [What Numbers Can Crazytel support?](https://crazytel.com.au/knowledgebase/article/what-numbers-can-crazytel-support.md) - [Making Calls While Overseas with Crazytel Services](https://crazytel.com.au/knowledgebase/article/making-calls-while-overseas-with-crazytel-services.md): When traveling internationally, staying connected to Australia is essential for both personal and business needs. Crazytel offers solutions that allow you to make calls to Australia seamlessly, regardless of your global location. - [Receiving Calls with a Mobile Softphone while traveling internationally.](https://crazytel.com.au/knowledgebase/article/receiving-calls-with-a-mobile-softphone-while-traveling-internationally.md): The Crazytel CrazyPhone mobile softphone app transforms your smartphone into a powerful business phone system. This guide specifically focuses on how to properly configure and optimize your mobile softphone to receive incoming calls reliably, both within Australia and while traveling internationally. - [Error Downloading External Provisioning -- What, and why?](https://crazytel.com.au/knowledgebase/article/error-downloading-external-provisioning-what-and-why.md): If you're encountering an ""Error Downloading External Provisioning"" message when trying to log in to the Crazyphone app, this guide will help you resolve the issue. This error typically occurs when users attempt to manually enter credentials instead of using the required QR code authentication method. - [Receiving SMS with a Mobile Softphone While Overseas](https://crazytel.com.au/knowledgebase/article/receiving-sms-with-a-mobile-softphone-while-overseas.md): Many travelers need to stay connected to their Australian phone number while overseas, particularly for receiving SMS messages like verification codes, important notifications, and business communications. This guide explains how you can receive SMS messages on your mobile softphone while traveling internationally. - [Porting a Skype number](https://crazytel.com.au/knowledgebase/article/porting-a-skype-number.md) - [What devices can I access my account on?](https://crazytel.com.au/knowledgebase/article/what-devices-can-i-access-my-account-on.md) - [What OS or hardware do I need to run Crazyphone?](https://crazytel.com.au/knowledgebase/article/what-os-or-hardware-do-i-need-to-run-crazyphone.md): What operating system does Crazyphone require? How much RAM? Do I need any special hardware? - [Where are Crazytel's Data centers?](https://crazytel.com.au/knowledgebase/article/where-are-crazytels-data-centers.md): Crazytel's data centers are located in major cities around Australia (and a few internationally!). This geo-redundancy, combined with cutting-edge load balancing, ensures minimal interruptions if there's a system or server fault. - [Multiple SIP Trunks with Multiple Extensions](https://crazytel.com.au/knowledgebase/article/multiple-sip-trunks-with-multiple-extensions.md): Many Crazytel customers ask whether they need to purchase multiple SIP Trunks or Extensions when they have multiple phone numbers. This guide explains how Crazytel's system allows you to manage multiple phone numbers (DIDs) with just a single SIP Trunk or Extension. - [Plan Management](https://crazytel.com.au/knowledgebase/article/voip-plan-management.md): How to change your plan with Crazytel - [Channel Partner | Wholesale | Affiliate Referral - Commissions](https://crazytel.com.au/knowledgebase/article/channel-partner.md) - [MMS Support](https://crazytel.com.au/knowledgebase/article/mms-support.md): Crazytel's support for MMS - what products do, and don't. - [Changing 2FA Numbers](https://crazytel.com.au/knowledgebase/article/changing-2fa-numbers.md): How to change your 2FA number on your Crazytel account - [Call Forwarding Charges](https://crazytel.com.au/knowledgebase/article/call-forwarding-charges.md): All about call forwarding charges. - [Crazytel IP Addresses](https://crazytel.com.au/knowledgebase/article/crazytel-ip-addresses.md): All about the IP Addresses Crazytel uses - [Access Denied Errors](https://crazytel.com.au/knowledgebase/article/access-denied-errors.md) - [Inbound Call Problems](https://crazytel.com.au/knowledgebase/article/inbound-call-problems.md): Can't receive inbound calls? This article covers the basics. - [Crazytel Physical SIM FAQ](https://crazytel.com.au/knowledgebase/article/physical-sim-faq.md): FAQ for Crazytel's Physical SIM/SIM only plans - [VoIP Plan overview](https://crazytel.com.au/knowledgebase/article/voip-plan-overview.md): What VoIP Plans does Crazytel offer? - [Legal Documents Repository](https://crazytel.com.au/knowledgebase/article/legal-docs.md): All about Crazytel's legal documents, and where to find them. - [Sign up restrictions](https://crazytel.com.au/knowledgebase/article/sign-up-restrictions.md): Who can and can't sign up to Crazytel? What restrictions are in place? - [Crazytel SIP Trunks vs CrazyPBX - ATA phones, plans and prices](https://crazytel.com.au/knowledgebase/article/sip-trunks-vs-crazypbx.md): Crazytel SIP trunks work directly with an ATA, IP phone or softphone without a PBX. Compare PAYG 50c/trunk, Crackers $35 and CrazyPBX Business $15/extension for one phone or a small office. - [SMS Message Costs (Virtual Mobile Numbers)](https://crazytel.com.au/knowledgebase/article/sms-message-costs.md): SMS message costs, and how to calculate them - [International Call Pricing](https://crazytel.com.au/knowledgebase/article/international-call-pricing.md): All about international call pricing and how to place international calls. - [SIP Trunks vs CrazyPBX Extensions - quick comparison](https://crazytel.com.au/knowledgebase/article/sip-trunks-vs-crazypbx-extensions-whats-the-difference.md): Standard SIP works directly with an ATA or phone, no PBX required. Hybrid adds office calling; CrazyPBX supplies hosted extensions. See the full comparison for PAYG, Crackers and extension prices. - [Understanding Codecs](https://crazytel.com.au/knowledgebase/article/understanding-codecs.md): A brief exposé on commonly found codecs -- nothing technical, only the basics! - [No Sound on Calls (SIP Device, IP Phone, or Softphone)](https://crazytel.com.au/knowledgebase/article/no-sound-on-calls-sip-device-ip-phone-or-softphone.md): No audio on calls, but not using the Crazyphone app? Check these before raising a heldesk ticket. - [No Sound on Calls (Crazyphone)](https://crazytel.com.au/knowledgebase/article/no-sound-on-calls-crazyphone.md): No Audio on the Crazyphone app? Check these settings! - [NetComm NF18-Mesh | No Caller ID Issue](https://crazytel.com.au/knowledgebase/article/netcomm-nf18-mesh-no-caller-id-issue.md): This article provides instructions on how to stop NetComm NF18-Mesh devicesfrom showing 'Anonymous' on all outbound calls. - [Realtime Network Status](https://crazytel.com.au/knowledgebase/article/realtime-network-status.md): All about the Network Status Page - [Account Login Issues](https://crazytel.com.au/knowledgebase/article/account-login-issues.md): This article covers common problems with signing into your account. - [Call Drop Outs (30s+)](https://crazytel.com.au/knowledgebase/article/call-drop-outs-30s.md): This article covers common causes for call drop-outs after 30s of call time. - [Call Drop-outs (10-30s)](https://crazytel.com.au/knowledgebase/article/call-drop-outs-10-30s.md): This article covers common causes for call drop-outs between 10 and 30 seconds. If your drop-out occurs after 30s, this is not the correct article. - [Glossary of Terms](https://crazytel.com.au/knowledgebase/article/glossary.md): This article covers non-standard abbreviations and terms Crazytel uses. - [How to Port Out your Mobile Number](https://crazytel.com.au/knowledgebase/article/porting-out-a-mobile-number.md): This guide explains how to port your Virtual Mobile Number away from Crazytel. - [Creating a Register Based SIP Trunk](https://crazytel.com.au/knowledgebase/article/qr-code-sip-trunks.md): How to generate a new SIP Trunk QR Code ## Getting Started - [CrazyPhone - team setup, ring groups, and shared SMS](https://crazytel.com.au/knowledgebase/article/crazyphone-team-setup-ring-groups-shared-sms.md): CrazyPhone team setup: one SIP trunk or CrazyPBX extension per person, Premium Ring Group to ring everyone on the same number, and shared SMS on one virtual mobile - SMS history sync optional. - [Authorised Representatives and Advocates](https://crazytel.com.au/knowledgebase/article/authorised-representatives-and-advocates.md): All about appointing another person as a representative, or an advocate to communicate with Crazytel. - [IPND Data](https://crazytel.com.au/knowledgebase/article/ipnd-data.md): How to add IPND information for numbers/services. IPND data is a legal requirement for services. - [How to call forward your Crazytel number](https://crazytel.com.au/knowledgebase/article/how-to-call-forward-your-crazytel-number.md): Use Manage Phone Numbers to send inbound calls from your Crazytel number to an external number. - [Where to find call records](https://crazytel.com.au/knowledgebase/article/where-to-find-call-records.md): Use Call Detail Records (CDR) to review call, SMS, fax, data, and billing rows for the account. Here you can filter records, check summary totals, inspect individual rows, and export a CSV. - [How to Buy a Number](https://crazytel.com.au/knowledgebase/article/how-to-buy-a-number.md): How to purchase a number from the Crazytel Customer Portal - [CrazyPhone - Crazytel's official softphone application | Setup Guide](https://crazytel.com.au/knowledgebase/article/crazyphone-crazytels-official-softphone-application-setup-guide.md): Crazyphone is Crazytel's official softphone application. This guide covers setting up and signing into the application. ## Premium Features - [What is a webhook?](https://crazytel.com.au/knowledgebase/article/what-is-a-webhook.md): A webhook is an automatic message Crazytel sends to a web address you choose when something happens on your phone system. - [Things every webhook has in common](https://crazytel.com.au/knowledgebase/article/things-every-webhook-has-in-common.md): How Crazytel sends webhooks, what to reply, and how signing, duplicates, caller ID and cost work unless a feature says otherwise. - [Announcements webhooks](https://crazytel.com.au/knowledgebase/article/announcements-webhooks.md): Get notified when a call reaches an Announcement box and when it finishes, including the events, a chat-app message and retries. - [IVR (Auto Attendant) webhooks](https://crazytel.com.au/knowledgebase/article/ivr-auto-attendant-webhooks.md): Follow a caller's journey through a Premium IVR: arrival, keypresses, where they are sent, and how the call ends. - [Ring Groups webhooks - missed calls and unanswered failover](https://crazytel.com.au/knowledgebase/article/ring-groups-webhooks.md): Premium Ring Group webhooks: start, answered, missed, abandoned and completed. An unanswered call sends ring_group.missed then completed failover. - [Queues webhooks](https://crazytel.com.au/knowledgebase/article/queues-webhooks.md): Track every stage of a caller's wait in a Premium Queue, from joining the queue to being answered or giving up. - [Voicemail webhooks](https://crazytel.com.au/knowledgebase/article/voicemail-webhooks.md): Send new voicemails, transcripts and missed-call alerts into your CRM, helpdesk or custom app. - [Recording Box webhooks](https://crazytel.com.au/knowledgebase/article/recording-box-webhooks.md): Get notified as soon as a Recording Box call recording is ready so you can pull it into a CRM, archive or quality review tool. - [AI Bridge webhooks](https://crazytel.com.au/knowledgebase/article/ai-bridge-webhooks.md): Get notified about calls handled by AI Bridge, and receive a conversation summary for supported AI providers such as Gemini Live. - [Time Conditions webhooks](https://crazytel.com.au/knowledgebase/article/time-conditions-webhooks.md): See which route each call took through a Time Condition, including schedule checks and how the call ended. - [CrazyFax webhooks](https://crazytel.com.au/knowledgebase/article/crazyfax-webhooks.md): Let your own systems know the moment a CrazyFax fax is sent, fails, or arrives. - [Verifying webhook signatures](https://crazytel.com.au/knowledgebase/article/verifying-webhook-signatures.md): Check HMAC-SHA256 webhook signatures for Premium Features, Ring Groups, Voicemail, Hybrid SIP Trunks and CrazyFax. - [Troubleshooting webhooks](https://crazytel.com.au/knowledgebase/article/troubleshooting-webhooks.md): Fix missing webhooks, failed signature checks, duplicate events and slow delivery for Crazytel webhooks. - [Webhooks quick comparison](https://crazytel.com.au/knowledgebase/article/webhooks-quick-comparison.md): Compare webhook setup across Crazytel Premium Features, Hybrid SIP Trunks and CrazyFax. - [Legacy Voicemail, Ring Groups, CrazyFax and Time Conditions shutdown](https://crazytel.com.au/knowledgebase/article/legacy-features-shutdown.md): Legacy Voicemail, legacy Ring Groups, legacy CrazyFax and legacy Time Conditions will be shut down on 1 December 2026. Legacy features can no longer be changed, only viewed or deleted, at legacy.crazytel.net. Replace them with Premium Features before the shutdown date. - [AI Bridge setup guide](https://crazytel.com.au/knowledgebase/article/ai-bridge-setup-guide.md): Route inbound Crazytel calls to an AI voice assistant such as OpenAI Realtime, VAPI, or Google Gemini Live. Covers creating an AI Bridge, Number Manager routing, provider settings, optional caller ID and webhooks, and troubleshooting. - [Premium Voicemail](https://crazytel.com.au/knowledgebase/article/premium-voicemail.md): Premium Voicemail creates mailbox-based voicemail for selected phone numbers. It supports custom greetings, email and SMS alerts, transcription, retention controls, webhooks, inbox playback, and usage reporting. - [Premium Recording Box](https://crazytel.com.au/knowledgebase/article/premium-recording-box.md): Premium Recording Boxes record inbound calls, optionally play a greeting, and then forward the call to another destination. They are useful when calls need to be captured for review, compliance, training, or follow-up. - [Premium IVR](https://crazytel.com.au/knowledgebase/article/premium-ivr.md): Premium IVR lets callers press keypad digits to navigate menus and route themselves to the correct destination. It supports multi-level menus, audio prompts, business schedules, holiday overrides, alerts, webhooks, and Number Manager routing. - [Premium Announcements](https://crazytel.com.au/knowledgebase/article/premium-announcements.md): Premium Announcements play an uploaded audio message to callers, then either hang up or forward the call to another destination. They support optional weekday schedules, holiday overrides, call history, and usage reporting. - [Premium Time Conditions](https://crazytel.com.au/knowledgebase/article/premium-time-conditions.md): Premium Time Conditions route inbound calls based on the date, day of week, time of day, and holiday overrides. They are most commonly used for business hours, after-hours routing, public holidays, and temporary closures. ## SIP-Trunks - [Hybrid SIP Trunks - WebRTC credentials, password, TURN and calls by SIP URI](https://crazytel.com.au/knowledgebase/article/hybrid-sip-trunks-webrtc-and-uri-calls.md): WebRTC password, WSS server and TURN settings for a Hybrid SIP trunk softphone or browser, plus incoming calls by SIP URI and *80 to skip call forwarding. - [Hybrid SIP Trunks - hold, transfer, recording, features and pricing](https://crazytel.com.au/knowledgebase/article/hybrid-sip-trunks-features.md): Hybrid SIP trunk features: hold, transfer, call recording, transcription, SIP REFER, call forwarding, WebRTC browser webphone, internal calling, parks and queues. $5 per Hybrid trunk per month. - [Hybrid SIP Trunk webhooks](https://crazytel.com.au/knowledgebase/article/hybrid-sip-trunk-webhooks.md): Choose which Hybrid SIP Trunk call, recording and registration events to send, including chat apps, signing and delivery history. - [Premium Ring Groups](https://crazytel.com.au/knowledgebase/article/premium-ringgroups.md): Premium Ring Groups distribute inbound calls to multiple members. They support simultaneous, sequential, circular, and longest-idle ringing, plus schedules, holiday routing, announcements, recording, transcription, AI insights, alerts, webhooks, and secure download links. - [SIP Trunk Announcements - How To](https://crazytel.com.au/knowledgebase/article/sip-trunk-announcements-how-to.md): How to set up an announcement for use with SIP Trunk routing - [SIP Trunk Auto Attendants / IVR - HOW TO](https://crazytel.com.au/knowledgebase/article/siptrunk-ivr.md): How to set up a SIP Trunk IVR/Auto Attendant. IVRs allow callers to press a keypad button to navigate an in-call menu to select a destination. - [SRTP call encryption - Hybrid SIP trunks, CrazyPBX and standard SIP trunks](https://crazytel.com.au/knowledgebase/article/srtp-compatibility-with-crazytel.md): SRTP encrypted calls (Secure RTP with SIPS/TLS) are supported on Hybrid SIP trunks and CrazyPBX, inbound and outbound. Standard SIP trunks do not support SRTP. - [Configuring Custom Outbound Proxy Settings](https://crazytel.com.au/knowledgebase/article/Configuring%20Custom%20Outbound%20Proxy%20Settings.md): Issue: Occasionally, our system may not automatically connect you to the nearest Point of Presence (POP) due to your Internet Service Provider's (ISP) centralized DNS setup. This can result in slower connectivity. ## SMS Center - [SMS Center - Getting Started](https://crazytel.com.au/knowledgebase/article/smscenter-basics.md): This guide covers the basics for Crazytel's new SMS Center; inbound setup, outbound setup, contact lists, opt-out lists. - [SMS Frequently Asked Questions](https://crazytel.com.au/knowledgebase/article/sms-frequently-asked-questions.md): The SMS Center covers day-to-day sending, 2-way conversations, bulk messaging, scheduled sends, authorised email senders, mobile number setup, address books, opt-out compliance, and message logs. ## News & Updates - [Introducing Ringo: Our New AI Team Member Powered by CrazyAI](https://crazytel.com.au/news/post/introducing-ringo-crazyai.md): Say g'day to Ringo - the newest member of the Crazytel team. Powered by CrazyAI, Ringo is available 24/7 in our website chat to answer questions, help set up your devices, check your account, manage support tickets and more. - [3CX Shared Hosting - Blocked](https://crazytel.com.au/news/post/3cx-shared-hosting-blocked.md): Crazytel has blocked the IP addresses of 3CX SMB multi-tenant cloud hosted servers across our network. This shared hosting service has been exploited by fraud and scam operators, including crypto scams, Commonwealth Bank impersonation scams, and UK bank impersonation scams, and we have been unable to reach a workable solution with 3CX. - [Crazytel Now Offers UK Landline and Virtual Mobile Numbers](https://crazytel.com.au/news/post/crazytel-now-offers-uk-landline-and-virtual-mobile-numbers.md): Crazytel has added UK landline and UK virtual mobile numbers. Friends, family, and business contacts can reach you as a local UK call, virtual mobiles can receive SMS, and you can skip expensive international roaming. UK number porting is coming soon. - [Triple Zero on Our New Network: No Ifs, No Buts, No Blocks](https://crazytel.com.au/news/post/triple-zero-on-our-new-network-no-ifs-no-buts-no-blocks.md): On Crazytel's new SIP Trunk network, calls to 000 bypass every account check - disabled trunks, negative balances, spend limits, the lot. Built into the core routing layer, not bolted on as an afterthought. - [Crazytel Now Supports IPv6](https://crazytel.com.au/news/post/crazytel-now-supports-ipv6.md): Crazytel now supports native IPv6 across our network - one of the first Australian VoIP providers to do so. If you already have IPv6, routing is automatic: no NAT, lower latency, and nothing you need to change. - [Introducing AI Bridge: Connect Your Phone Numbers to the World's Leading AI Voice Platforms](https://crazytel.com.au/news/post/introducing-ai-bridge-connect-your-phone-numbers-to-the-worlds-leading-ai-voice-platforms.md): AI Bridge is a custom-engineered gateway that connects your Crazytel phone numbers to leading AI voice platforms like OpenAI Realtime, Vapi, and Retell. Free during beta - and 12 months free if you join now. - [Crazytel: The Who, What, When & Why](https://crazytel.com.au/news/post/crazytel-the-who-what-when-why.md): Setting the record straight on rumours about Crazytel's ownership, grandfathered plans, and SIP Trunk changes — plus an honest look at our growth over the past 12 months. - [Custom On-Hold Music, Powered by AI](https://crazytel.com.au/news/post/custom-on-hold-music-powered-by-ai.md): Create professional custom on-hold music with AI for only $2 per track. Discover how our AI generator provides affordable, studio-quality hold music and voiceovers for your VoIP business phone system. - [CrazyFax: Rebuilt From the Ground Up](https://crazytel.com.au/news/post/crazyfax-rebuilt-from-the-ground-up.md): We rebuilt CrazyFax entirely in-house - a modern cloud fax platform with REST API, email-to-fax, fax-to-email, webhooks, and 100% Australian data sovereignty. No hardware, no middleware, just fax that works. - [Crazytel SIP Trunks Now Support Retell AI!](https://crazytel.com.au/news/post/crazytel-sip-trunks-now-support-retell-ai.md): Your Crazytel SIP Trunks can now connect directly to Retell AI for outbound calls, AI voice agents, and more. We're building the features you want. ## Site - [Crazytel homepage](https://crazytel.com.au/) - [Curated llms.txt](https://crazytel.com.au/llms.txt)