FreePBX-Dinstar SIP Registration Fix

₹600-1500 INR

Closed

Posted 7 days ago

₹600-1500 INR

Paid on delivery

My Dinstar GSM gateway needs to register cleanly to FreePBX so that any call hitting the SIM in the gateway is forwarded to a MicroSIP client already registered on the same LAN. At the moment the gateway refuses to register, and every sign points to a network-level configuration problem rather than authentication or timeout issues. All three devices—FreePBX, the Dinstar gateway and MicroSIP—sit on the same subnet, so I would like a fresh set of eyes to trace, correct and document whatever is blocking the SIP handshake. Here is what I need from you: • Join me through AnyDesk or TeamViewer for live troubleshooting and configuration. • Adjust FreePBX trunk settings, Dinstar SIP parameters and any required NAT / firewall rules until the gateway registers and call flow works end-to-end (SIM ➜ Dinstar ➜ FreePBX ➜ MicroSIP). • Prove success with a test inbound call and, if possible, an outbound call from MicroSIP via the GSM channel. • Provide a concise step-by-step document of every change you make so I can replicate or reverse it later. Tools in play include FreePBX (latest stable), Dinstar gateway web GUI / CLI, MicroSIP, and basic network utilities such as ping, traceroute and packet capture should they be needed. Acceptance criteria: 1. Dinstar gateway shows “Registered” status in both its own interface and FreePBX. 2. Incoming GSM call rings and is answered on the MicroSIP client with two-way audio. 3. Delivered documentation clearly lists settings altered on FreePBX, Dinstar and the network. If you have solid SIP troubleshooting skills and are comfortable working live over remote desktop, this should be a straightforward engagement.

SIP

Network Administration

Project ID: 40667191

About the project

3 proposals

Remote project

Active 2 days ago

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3 freelancers are bidding on average ₹2,200 INR for this job

@techs4funs

Hello, I’m very interested in this project because it closely matches work I have already completed successfully with FreePBX and Dinstar GSM gateways. I have 15+ years of hands-on experience with FreePBX/Asterisk, SIP trunking, GSM gateways, NAT, firewall rules, dial plans and VoIP troubleshooting. I have previously integrated Dinstar gateways with FreePBX, configuring SIP registration, inbound and outbound routing, GSM channels and end-to-end call flows. For your environment, I can troubleshoot the complete path: SIM → Dinstar → FreePBX → MicroSIP I can work with you live through AnyDesk or TeamViewer, review the Dinstar SIP configuration, FreePBX trunk settings, extensions and routes, and verify any network or firewall rules that could be blocking SIP registration or RTP audio. If required, I can also use packet captures and SIP traces to identify exactly where the registration handshake is failing. The goal will be to leave the environment fully operational, including: * Dinstar correctly registered to FreePBX * Incoming GSM calls ringing on MicroSIP * Two-way audio confirmed * Outbound GSM calls tested when supported * Clear documentation of every configuration change Since I have already implemented similar Dinstar + FreePBX integrations successfully, I am familiar with the common SIP, routing and network issues involved and can approach the troubleshooting efficiently. Best regards, Diego

₹3,900 INR in 1 day

4.9

(5 reviews)

3.3

@pravat1980

SIP/VoIP Expert | FreePBX, Asterisk, Dinstar GSM & MicroSIP Proposal — under 1,500 characters Hi, I am a Senior SIP/VoIP Engineer with strong hands-on experience in SIP signaling, Asterisk/FreePBX, GSM gateways, RTP, MicroSIP, Wireshark and network troubleshooting. Your requirement closely matches my expertise. I can join through AnyDesk or TeamViewer and troubleshoot the Dinstar registration issue live. I will systematically check network connectivity, SIP ports, transport protocol, registration parameters, firewall rules and SIP signaling to identify exactly where the handshake is failing. I can configure and validate FreePBX SIP trunks/endpoints, Dinstar SIP parameters, authentication, SIP transport, NAT/firewall rules, RTP ports, codecs and inbound/outbound routes. Using SIP traces, packet capture and Wireshark, I can verify whether REGISTER messages reach FreePBX and analyze the responses to resolve the registration problem. After registration is restored, I will test the complete call flow: GSM SIM → Dinstar → FreePBX → MicroSIP I will verify inbound calls with two-way audio and, where supported, test outbound calls from MicroSIP through the GSM channel. Finally, I will provide concise documentation covering all FreePBX, Dinstar and network changes, including the relevant settings so you can reproduce or reverse them later. I am ready to troubleshoot the system remotely and work toward your stated acceptance criteria.

₹1,200 INR in 7 days

0.0

(0 reviews)

0.0

@maisarahZ2

I can troubleshoot and configure the Dinstar GSM gateway registration with FreePBX and route incoming SIM calls to the registered MicroSIP extension. My hands-on experience includes Asterisk/Issabel PBX administration, SIP trunks, inbound and outbound routes, IVR, FXO/FXS channels, Grandstream PBX systems, firewall rules, NAT, VPN connectivity, RTP ports, and SIP session troubleshooting. I will verify the IP configuration, SIP registration parameters, transport and ports, codecs, NAT/firewall settings, FreePBX trunk, inbound route, extension registration, and two-way audio. I will then test the complete call flow and document the final configuration. Before starting, please confirm the Dinstar model, FreePBX version, and whether both devices have static IP addresses on the same LAN.

₹1,500 INR in 2 days