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Standard ECMA-345
Private Integrated Services Network (PISN) - Use of QSIG for Message Centre Access (MCA) Profile Standard

(June 2003)

This Profile Standard specifies the combination of base standards, together with the selection of appropriate options and parameter values, necessary to specify how QSIG / PSS1 can be used for Message Centre Access (MCA) procedures.

This Standard identifies the necessary or optional employment of particular functions, procedures and services for

  • a Calling User to deposit messages for a Served User at a Message Centre,
  • a Served User to monitor the Served User's Mailbox for new messages,
  • a Served User to browse through the messages saved in the Served User's Mailbox,
  • a Served User to retrieve the messages saved in the Served User's Mailbox and
  • a Served User to get connected to the Originator of a message or any other destination.


The following file can be freely downloaded:

File name Size (Bytes) Content
ECMA-345.pdf 1 978 531 Acrobat (r) PDF file

This Ecma publication is also approved as ISO/IEC 20115.

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