Access and location information – The IMS: IP Multimedia …
P- Access-Network-Info SIP Header, P- Access-Network-Info SIP Header, Examples of P-Access-Network-Info headers are as follows: If the RAT-Type is UTRAN: P-Access-Network-Info: 3GPP-UTRANutran-cell-id-3gpp=C359A3913B20E If the RAT-Type is GERAN: P-Access-Network-Info: 3GPP-GERANcgi-3gpp=62F8100005C599 If the RAT-Type is EUTRAN:, 7/12/2018 · P-Access-Network -Info header values are changed on the basis of network type device is using at that time. Here are some examples : Device is connected to WIFI:, P-Access-Network-Info Header Syntax The syntax of the P-Access-Network-Info header field is described as follows: P-Access-Network-Info = P-Access-Network-Info HCOLON access-net-spec *(COMMA access-net-spec) access-net-spec = (access-type / access-class) *(SEMI access-info) access-type = IEEE-802.11 / IEEE-802.11a / IEEE-802.11b / IEEE-802.11g / IEEE-802.11n / IEEE-802.3 /.
P-Access-Network-Info The P-Access-Network-Info header is a 3GPP-specific header and indicates to the IMS network over which access technology the UE is attached to IMS. In our example the access technology is GPRS. It also includes the Cell Global ID (CGI), which indicates the location of the user.
RFC 7913 PANI ABNF June 2016 As the P-Access-Network -Info header field is mainly used in networks defined by the 3rd-Generation Partnership Project (3GPP), where new values following the ‘generic-param’ rule have been defined [TS.3GPP.24.229], the update is not considered to cause issues with backward compatibility.
For instance, 3GPP will use the P-Access-Network-Info header to carry relatively sensitive information like the cell ID. Therefore the information MUST NOT be sent outside of the 3GPP domain. The UA is aware – if it is a 3GPP UA – that it is operating within a trusted domain.
The P-Access-Network -Info header The P-Access-Network -Info header is used to transport a set of parameters associated with the access characteristics of a particular network. The information in the P-Access-Network -Info is privacy sensitive. It is intended for.
The access awareness feature in the Serving Call Session Control Function (S-CSCF) uses the P-Access-Network-Info header in the initial REGISTER request for selecting the registration and authentication profile. This in turn depends on the access class of the IP Connectivity Access Network (IP-CAN) being used by the user equipment.
In other words, a home network with business agreements allowing users to access via a particular technology must be able to parse the P-Access-Network-Info header containing an access-type for that technology in order to use this information. For example, the access-type could read æIEEE-802.11bÆ.
