Dear, Dariush!
There is quot from Siemens BR9 description (OMN:BSC):
The BSC is interfaced with the following Network Management systems:
…….
b) the Cell Broadcast Centre to support all GSM specified cell broadcast service primitives.
…..
In order to manage the interfaces toward these network elements, two different level 3
protocols are supported by the eBSC:
– The X.25 protocol;
– The IP protocol
with regards, Pan.