Hi Slim,
It’s not vendor dependant :
MS is said to be compliant to “3GPP release 4” if it has the “GERAN Feature Package 1”.
This information is wrote in the field “MS Radio Access Capability IE”
which is in, either, :
– “Packet Resource Request” (MS > BTS)
– one DL LLC PDU
– “RA CAPABILITY UPDATE-ACK” (SGSN > MS)
regards,
pix