Huawei E355 and OBSD as SMS gateway

[Tito Mari Francis Escaño]

Hello everyone,
I researched online for using Huawei E355 with OpenBSD as a means to create
an SMS gateway, however I did not find any reliable resource on this.
Can somebody also please point me to the proper direction how OBSD can be
used as an SMS gateway? I have seen many references only for Linux-based
systems.
Hope you could help me. With gratitude, thank you very much.