12.2.1 PBX Configuration—[4-2-1] Extension—Portable Station—Extension Settings—Option 9— PDNDelayed Ringing12.2.3 PBX Configuration—[4-2-3] Extension—Portable Station—Flexible Button→ Type→ Parameter Selection (for SDN)→ Extension Number (for SDN)12.3 PBX Configuration—[4-3] Extension—DSS ConsoleFeature Manual References4.1.22 COS (Class of Service)10.1.2 ICD Group Features—Group Call Distribution12.1.1 LED Indication23.1 Capacity of System ResourcesOperating Manual References1.3.6 Call Hold1.3.51 PDN (Primary Directory Number)/SDN (Secondary Directory Number) Extension1.3.74 Walking COS15.1.5 Peer-to-Peer (P2P) ConnectionDescriptionThis PBX automatically establishes peer-to-peer communication between peer-to-peer compatible IPextensions (i.e., IP-PTs and SIP extensions) and SIP CO lines that belong to the same P2P group. Withpeer-to-peer calls, the call is routed directly from one IP extension to another without going through a DSPcard, which means that P2P calls are established without using the PBX’s resources.P2P ScenariosP2P calls can be established between telephones in a single site or across sites. The following illustrationsshow P2P calls established in a variety of network configurations. It is assumed that all the devices areconnected over a private IP network.P2P connection within a siteSite 2P2PRouter RouterPBXSite 1P2PPBXCalls between IP telephones within a site establish a P2P connection.Document Version 2016-03 Feature Manual 26315.1.5 Peer-to-Peer (P2P) Connection
