BAP No-Phone-Number Details

The No-Phone-Number option indicates that the calling implementation is already configured with the phone number of its multilink peer.
Type  A one-octet field that indicates the type of this BAP datagram option. For No-Phone-Number, the type is 03. 
Length  A one-octet field that indicates the length in bytes of this option. For No-Phone-Number, the length is 02