PLDT Inc. filed June 22 with the Securities and Exchange Commission and Philippine Stock Exchange to launch VITRO REIT Inc., a P24.2-billion ($399-million) initial public offering that will convert eight existing data centers into the country’s first digital infrastructure real estate investment tru
Phantom offline status—where VoIP phones cycle between registered and unregistered without any physical network disruption—is a SIP timer alignment problem.
The VoIP bandwidth calculation every vendor hands you underestimates actual network load by 25% or more, because it treats codec bitrate as the whole picture while ignoring protocol headers, Wi-Fi airtime loss, and the real behavior of Philippine ISP links under congestion.
Threat intelligence firm Defused disclosed June 23 that attackers are actively exploiting CVE-2026-20230, a high-severity server-side request forgery vulnerability in Cisco Unified Communications Manager and Unified CM Session Management Edition that allows unauthenticated remote attackers to write
SIP-based IP telephony scales by adding user licenses, endpoint registrations, and trunk channels to existing infrastructure.
Calls that die at exactly 30 seconds point to one root cause: a SIP re-INVITE or BYE message blocked by NAT or firewall policy after initial call setup completes.
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