To fully use Merge services a client SIP user agent needs access to following ports used by the Merge Service Platform:
Port range Protocol Description Application 5060 UDP SIP signaling SIP Proxy/Registrar/Presence Agent 53 UDP DNS resolution DNS and ENUM 50000:60000 UDP RTP media MediaProxy – RTP media relay 2855 TLS MSRP media MSRP relay – MSRP media relay 443 TLS XCAP storage OpenXCAP – Presence policy management
Having some of these ports blocked is one of the main reasons for having trouble with Merge services. Check for your network administrator to check your settings.
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