This page is strictly about repair & troubleshooting. If your phones show Not Registered, calls drop, there’s one-way audio, echo, or inbound calls don’t reach the right extension — we diagnose and fix the root cause (network, NAT, SIP trunk, PBX configuration). Same-day support in Dubai, Abu Dhabi, Sharjah, Ajman, RAK, Fujairah, UAQ and Al Ain.
Google duplicate content happens when pages repeat the same “installation” text. This page is different: it focuses only on fault diagnosis, SIP/RTP, firewall/NAT and real VoIP issues.
Correct SIP credentials, account lock, provider restrictions, SIP ALG issues, DNS problems and registration interval problems.
Fix RTP/NAT issues, firewall ports, wrong IP/SDP, symmetric RTP, router misconfiguration and ISP routing issues.
Diagnose jitter, packet loss, QoS, PoE switch issues, codec mismatch, echo canceller settings and bandwidth competition.
Fix DID mapping, outbound routes, caller ID, trunk registration, dial plan, blocked numbers and time-condition mistakes.
Stop SIP attacks, brute force and fraud calls. Secure PBX, restrict international calls, and harden firewall rules (safe configuration).
Fix recording storage, permissions, voicemail delivery, email SMTP, and reporting accuracy for supervisors and admins.
Troubleshooting needs a method. We check registration, NAT, RTP, QoS, provider trunk and PBX rules step-by-step.
We confirm the exact problem: registration, audio, call drop, inbound/outbound routing or PBX logic.
Router/firewall check: SIP ALG, NAT type, port rules, DNS, RTP range, and provider connectivity.
We validate trunk registration, DID mapping, outbound routes, time conditions, codec and failover rules.
We apply fixes, then test multiple call scenarios (in/out/transfer/queue) and confirm stable quality.
Dubai / Abu Dhabi / all UAE support. SIP, NAT, trunk, PBX routing and call quality troubleshooting.
Call Now: 050 498 8909