fix asterisk problem

Hello, your problem is network related and Asterisk configuration. The error message comes in two usually: chan_sip.c: Hanging up call no reply to our critical packet. Please could you provide me with detailed network setup of your server? Thank you.

This warning related to nat issue, maybe a firewall or misconfiguration on your Asterisk nat settings, contact me I can help you

Hi there, I am a Senior VoIP engineer with recognized strength in Asterisk PBX and +6 years of advanced experience. I have faced with this error many times in previous projects and there are few solutions to find out the root cause and solve this. for more details I need to take a quick look at the configuration and firewall. please read my profile and contact me for details.

Hi there, I am experienced Asterisk administrator. Ready to fix your issue with NAT and configure firewall. Thanks.

I can fix it. You will pay only if the problem had been solved. I just need to connect on your PBX using teamviewer, or ssh. If you want you can share also your SIP configuration (removing sensitive data). Thaks. Gian

Hello I am a system admin with decent experience in network engineering and VoIP (especially asterisk) and I can fix the problem with your asterisk, however, you didn't mention anything about the firewall type you need to configure. Can you please clarify it to me? If the firewall you have falls under my field of knowledge and experience I would gladly do this job. The below-average cost was chosen due to the fact that it is my first project on this website. Yours sincerely Oleksandr

First, I am sunsoftpro, I from VietNam. Nice to meet you! I have read your description and been interested in your project. I'm ready to discuss and do hard working so that complete great job. Please discuss requirements and terms before awarding the project.

We currently use Asterisk within our system. One Asterisk Box sits on the Internet, another sits internally within our local system behind a firewall. I'd be more than happy to assist you on this. Message me if you're interested and we can further discuss everything.

Hello! I have over 20 years experience in Telecom, more than 200 successful projects in VOIP. My excellent knowledge validated tests for Upwork and certificates. I have excellent feedback from customers. Elastix, FreePBX, Asterisk and FusionPBX FreeSWITCH - my main job. Hire me please for this job. I'm ready for your work!