The NetSapiens inter-domain calling quirk that keeps showing up

A NetSapiens inter-domain calling quirk causes incorrect caller IDs to display when calls are transferred or held between domains. This affects multi-tenant reseller deployments, leading to cosmetic issues like incorrect call history and voicemail attribution. To work around this, configure SIP header rewriting, verify call history fields, or check for client-side caching issues. A deeper fix requires a platform-side update, depending on the NetSapiens version.