This invention relates to an in-reactor polymer blend comprising: a first ethylene-containing polymer having a density of greater than 0. The first housing has a first flange, and the second housing has a second flange. The photo-mask can include a body element and one or more sets of diffractive elements andor refractive elements disposed on the body element or within the body element. The non access stratum, NAS, signaling support between the User Equipment, UE, and the MME is extended to provide support for both MT SMS and MO SMS service.