This edition of the Type B Service Reference Manual supersedes the
SITAMAIL Type B Reference Manual issued in May 1995.
This manual is intended for new member companies to SITA, and all SITA
and member company personnel involved in transmitting and receiving
Type B messages, either wholly or partly over the SITA Network.

The manual establishes the telecommunication standards for Type B message
handling used on the SITA Network. These standards will assist new
members in making their physical connection(s) to the SITA Network and are
essential to operations staff in obtaining maximum efficiency and security
when using the SITA Network.

It is recommended that SITA member companies operating their own facilities
use these rules as a guide for standardization.