I will sip trunk did number 3cx p1 auto dialer voip auto dialer and sip trunk provider
United States
3 orders completed
Fix, Integrate, Automate, Build Technology That Works
Highly Responsive
Known for exceptionally quick replies
About this Gig
Need professional SIP trunk and PBX config? I setup and fix Twilio, Telnyx, Zadarma, FusionPBX and other sip for business calling.
What I Offer:
1. Twilio Elastic SIP trunk
2. Telnyx SIP connection
3. Zadarma gateway routing
4. FusionPBX gateway setup
5. FreePBX PJSIP trunking
6. Asterisk dialplan setup
7. VoIP.ms & Flowroute trunk
8. Inbound DID destination
9. Outbound E.164 dialplan
10. Custom Caller ID CNAM
11. Fix one way audio NAT
12. Fix 30-sec drop calls
13. Fix circuits busy error
14. Fix 403 forbidden error
15. Fix 408 timeout error
16. Fix unreachable gateway
17. SIP ALG router diagnosis
18. Multi-level IVR menu
19. Custom ring group setup
20. Call queues & hold music
21. Voicemail to email WAV
22. Time condition schedules
23. Caller id sp*oofing
24. Automatic call recording
25. Intercom & group paging
26. Zoiper & MicroSIP setup
27. Yealink phone templates
28. Grandstream IP phones
29. Grandstream ATA adapter
30. Vapi AI voice trunking
31. Bland AI agent routing
32. Retell AI voice SIP
33. CRM webhook call popups
34. Fail2ban PBX firewall
35. ACL IP whitelist security
36. SIP TLS SRTP encryption
37. Multi-carrier failover
Select a package or contact me to start!
Device:
Desktop
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Laptop
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Server
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Mobile
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Tablet
Operating system:
Windows
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Linux
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Unix
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IOS
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Ubuntu
My Portfolio
Other Support & IT Services I Offer
FAQ
Which SIP trunk carriers and providers do you configure?
I configure all major carriers including Twilio Elastic SIP Trunking, Telnyx Mission Control, Zadarma, VoIP.ms, Flowroute, Bandwidth.com, and DIDWW. I support both IP-based authentication (IP Access Control Lists / Origination URIs) and credential-based registration (SIP username and secret) on any
Which PBX platforms and telephony engines do you support?
I specialize in FusionPBX (FreeSWITCH) and FreePBX (Asterisk 18/20/chan_pjsip). I also support Issabel, 3CX, OpenSIPS, and standalone Linux PBX deployments hosted on AWS EC2, DigitalOcean, Vultr, Linode, or local dedicated servers.
Can you fix one-way audio, dropped calls, and NAT issues?
Yes! One-way audio, no audio, and 30-second call drops are common symptoms of NAT traversal issues, missing external RTP port forwarding (10000-20000 UDP), SIP ALG interference, or SIP ACK timeout failures. I diagnose and resolve these directly in your SIP profiles and firewall settings using sngrep
How do you fix "All circuits are busy", 403 Forbidden, and 408 Timeout errors?
These errors occur when trunk gateways fail to authenticate, codec negotiation fails, or dialplan regex rules are mismatched. I resolve 403 Forbidden, 408 Request Timeout, 503 Service Unavailable, and "All circuits are busy now" errors by repairing gateway registrations, ACL whitelists, and E.164 di
Can you map incoming DIDs and set custom Outbound Caller ID?
Absolutely. I configure Inbound DID Destination routing to direct incoming calls to extensions, IVR auto-attendants, ring groups, or queues. I also configure Outbound Caller ID (CLI / CNAM) so your verified business numbers display correctly on outbound calls.
Can you connect my SIP trunk to AI Voice Agents (Vapi, Bland AI, Retell)?
Yes! I configure BYO SIP trunks and SIP URI forwarding to connect Twilio, Telnyx, or FusionPBX/FreePBX directly to Vapi AI, Bland AI, and Retell AI. I can also configure hybrid call routing to transfer calls from the AI voice bot to live human agent extensions.
How do you protect my PBX from VoIP hacking and toll fraud?
I harden your system using Fail2ban intrusion defense, Access Control List (ACL) carrier IP whitelisting, custom SIP signaling ports, and strong extension secrets. I can also enable SIP TLS signaling and SRTP voice encryption for enterprise and HIPAA compliance.
What details do you need to get started?
To begin, I need access to your PBX Web GUI (FusionPBX / FreePBX), Server SSH access (for firewall/NAT configuration), and your Carrier Portal credentials (Twilio, Telnyx, or Zadarma). Remote support via AnyDesk is also available if preferred.

