PHB (Per Hop Behaviors)
PHB (Per Hop Behaviors) are the actions a router takes for a packet marked with a specific code point in the Diffserv QoS mechanism in IP networks.
Relevant NENA Documents
Note: To find and download the document, copy the document number (like STA-010) from below and search the NENA Standards and Documents page.
NENA-STA-010, NENA i3 Standard for Next Generation 9-1-1