Asterisk PBX is an open source telephony framework used to create communication solutions for businesses, from voice and video calls to automated call routing. An Asterisk PBX Development professional is highly knowledgeable in the Asterisk platform and is able to deploy custom Asterisk Solutions according to a company’s needs. Services offered by an Asterisk Developer include managing, monitoring and maintaining the Asterisk system and any external services, building custom features specific to the business and improving security through authentication and encrypted communications.

Here's some projects that our expert Asterisk PBX Developer made real:

  • Securing IT networks by blocking unwarranted access attempts
  • Connecting a billing platform with a MultiTenant PBX
  • Setting up secure VoIP applications used to make voice calls
  • Researching and troubleshooting of software issues
  • Integrating third-party APIs into the system
  • Developing feature rich customer service solutions
  • Configuring text message autoresponder systems
  • Improving network configurations with Firewall services

Projects like these require experienced developers who understand the Asterisk PBX platform. If you’re looking for someone with that precise set of skills, post a project on Freelancer.com to hire an Asterisk PBX Developer today. Our team of highly qualified professionals will be able to help you design, develop and deploy custom communication solutions for your business.

From 20,963 reviews, clients rate our Asterisk PBX Developers 4.9 out of 5 stars.
Hire Asterisk PBX Developers

Asterisk PBX is an open source telephony framework used to create communication solutions for businesses, from voice and video calls to automated call routing. An Asterisk PBX Development professional is highly knowledgeable in the Asterisk platform and is able to deploy custom Asterisk Solutions according to a company’s needs. Services offered by an Asterisk Developer include managing, monitoring and maintaining the Asterisk system and any external services, building custom features specific to the business and improving security through authentication and encrypted communications.

Here's some projects that our expert Asterisk PBX Developer made real:

  • Securing IT networks by blocking unwarranted access attempts
  • Connecting a billing platform with a MultiTenant PBX
  • Setting up secure VoIP applications used to make voice calls
  • Researching and troubleshooting of software issues
  • Integrating third-party APIs into the system
  • Developing feature rich customer service solutions
  • Configuring text message autoresponder systems
  • Improving network configurations with Firewall services

Projects like these require experienced developers who understand the Asterisk PBX platform. If you’re looking for someone with that precise set of skills, post a project on Freelancer.com to hire an Asterisk PBX Developer today. Our team of highly qualified professionals will be able to help you design, develop and deploy custom communication solutions for your business.

From 20,963 reviews, clients rate our Asterisk PBX Developers 4.9 out of 5 stars.
Hire Asterisk PBX Developers

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    14 jobs found

    My Panasonic NX500 PBX sits on but cannot “see” the rest of my network. Everything else flows through a FortiGate 60F firewall, a FortiSwitch 424E-Fiber core, and a FortiSwitch 124F-FPOE at the edge. I need someone to shape the network so this Panasonic box can handle VoIP communication smoothly. What I already know • The PBX will run pure SIP. • Dedicated VoIP rules on the FortiGate are required; simple, generic access is not enough. What I need from you • Review the current FortiGate policy set, VLAN layout, and switch port profiles. • Create or adjust firewall rules, NAT, and any SIP ALG or helper settings so that SIP registration, signalling, and RTP streams pass without one-way audio or dropped calls. • Tag or untag the appropriate swi...

    £346 Average bid
    £346 Avg Bid
    11 bids

    I’m looking for help securing one United States VoIP DID that plugs straight into my existing PBX so our support team can start taking customer calls right away. The number must be fully functional for both inbound and outbound traffic and delivered with clear SIP credentials I can drop into my system without extra hardware. You’ll handle everything—from sourcing a reliable carrier, activating the line, and confirming it registers cleanly on my PBX—to ensuring call quality meets normal business-class standards. If you can bundle extras such as voicemail, call recording, or simple forwarding rules, let me know; they aren’t mandatory but would be appreciated. Once the line shows registered and I can place and receive live test calls, the job is done.

    £12 Average bid
    £12 Avg Bid
    9 bids

    I’m looking for a reliable ViciDial pro who can jump in each day and keep my dialer running smoothly. The core of the job is straightforward but must be done consistently: • Run the standard performance and list-based reports I specify, download them, and drop them in our shared folder before end of day. • Import new lead files (CSV) as they arrive, map fields correctly, and verify the list is live. • Check that every active campaign’s leads are sitting in the hopper in the right quantities so agents never run dry. If a hopper is empty—or about to be—top it up and ping me in Slack. Everything is handled remotely; you’ll just need a stable connection, a headset for quick follow-up calls if questions arise, and solid familiarity with the Vic...

    £4 / hr Average bid
    £4 / hr Avg Bid
    10 bids

    I’m looking for a reliable ViciDial pro who can jump in each day and keep my dialer running smoothly. The core of the job is straightforward but must be done consistently: • Run the standard performance and list-based reports I specify, download them, and drop them in our shared folder before end of day. • Import new lead files (CSV) as they arrive, map fields correctly, and verify the list is live. • Check that every active campaign’s leads are sitting in the hopper in the right quantities so agents never run dry. If a hopper is empty—or about to be—top it up and ping me in Slack. Everything is handled remotely; you’ll just need a stable connection, a headset for quick follow-up calls if questions arise, and solid familiarity with the Vic...

    £10 / hr Average bid
    £10 / hr Avg Bid
    11 bids

    I want to put an always-on AI voice agent in charge of one thing only: generating brand-new cold leads by telephone. I will provide the target market, ideal-customer profile, and high-level talking points; you build, train, and deploy the agent so it can dial prospects, hold a natural conversation, qualify interest, and pass every promising contact straight into my CRM. The agent must: • sound human and handle common objections in real time • record, transcribe, and store every call • schedule callbacks or meetings on my calendar • respect local calling regulations (TCPA, GDPR where applicable) I’m comfortable with Twilio Voice, Dialogflow, ElevenLabs, GPT-4, or any similar stack—as long as call quality and scalability stay top-tier. Show me a short archit...

    £15 / hr Average bid
    £15 / hr Avg Bid
    52 bids

    Need an experienced s specialist to configure our SIP and PRI trunks I will provide remote access to the server and trunk credentials once we agree on the approach. Looking forward to working with someone who can get this running quickly and cleanly. Asterisk PBX Linux SIP Software Architecture,Engineering VoIP

    £165 Average bid
    £165 Avg Bid
    9 bids

    I need UAE number for VOIP call inbound and outbound call, do you know which provider is best for this ? or you can provide us this service ?

    £121 Average bid
    £121 Avg Bid
    2 bids

    I need an experienced telephony engineer to bring up a new IVR on our Asterisk-based server that will answer calls coming in on both a SIP trunk and a PRI. The core requirement is a clean, dependable call-routing tree—callers should reach the right destination every time—with call recording and basic, built-in reporting turned on from day one. Environment • Linux box already running Asterisk (remote SSH available) • One SIP trunk + one PRI (credentials and circuit details ready) Scope of work 1. Configure the IVR in Asterisk, activate call routing options, and confirm that both trunks follow the same logic. 2. Enable call recording for all menu paths, store files locally in an organised directory structure, and verify playback. 3. Turn on the stock call‐...

    £183 Average bid
    £183 Avg Bid
    3 bids

    We need a developer to build a real-time voice transformation application that changes our voice during live phone calls (both inbound and outbound) using the ElevenLabs Speech-to-Speech API. What We Need: The app should capture microphone input, stream it to the ElevenLabs voice changer API, and route the transformed audio back through a virtual audio device (like VB-Cable or VoiceMeeter) so it can be used as a microphone input for any calling app — Zoom, Google Voice, Teams, RingCentral, or any softphone. Key Requirements: Real-time voice transformation with minimal latency (target sub-500ms) Works with any phone/calling application via virtual audio device Supports both inbound and outbound calls Simple desktop GUI with voice selection, on/off toggle, and audio level meters Abil...

    £17 / hr Average bid
    £17 / hr Avg Bid
    116 bids
    ASTPP Rates & Prefix Setup
    2 days left
    Verified

    I need an expert to help me configure billing rates and internal prefixes in my ASTPP installation. Tasks: Import and set up billing rate cards. Configure internal prefixes for specific routing rules. Ensure the billing engine is capturing data correctly. This is a straightforward task for someone who knows ASTPP well. Please bid only if you have worked with ASTPP before and can start immediately.

    £19 Average bid
    £19 Avg Bid
    28 bids

    We’re looking for a technically strong DeFi specialist to work with advanced, short-duration liquidity strategies involving major stable assets. This role focuses on atomic, transaction-level execution—designing and operating systems that temporarily access deep liquidity, perform precise on-chain operations (such as swaps, rebalancing, or liquidations), and settle everything within a single block. No long-term custody, no idle capital exposure. Ideal candidates understand: • How liquidity works at the protocol level • ERC-20 mechanics, approvals, and balance safety • DEX routing, slippage control, and execution guarantees • Risk-aware, fail-safe transaction design This is a fast-moving environment suited for engineers who enjoy high-precision problem...

    £136 Average bid
    £136 Avg Bid
    14 bids
    Telnyx TexML settings
    2 days left
    Verified

    Hello: I am trying to create TexML account at Telnyx portal for VOIP calls. I do have some knowledge but your experience can make it faster. Thank you

    £22 Average bid
    £22 Avg Bid
    17 bids

    Need an experienced telephony specialist to configure a IVR that works on both our SIP and PRI trunks with all recording and basic reporting enabled . I will provide remote access to the server and trunk credentials once we agree on the approach. Looking forward to working with someone who can get this running quickly and cleanly.

    £78 Average bid
    £78 Avg Bid
    8 bids
    FreePBX Calls
    11 hours left
    Verified

    Our FreePBX (Astersik) System is rejecting inbound calls and unable to make outbound calls. System uses Laravel UI with PBX system. Telnyx says that problem is with our system. So who is expert to fix it in few clicks? Thank you

    £26 Average bid
    £26 Avg Bid
    31 bids

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