3 Service definition

03.463GPPTechnical Realization of Facsimile Group 3 Service - non transparentTS

The fixed network facsimile group 3 service, as basically defined in CCITT Recommendation F.160, is an international telematic service for document transmission between two facsimile group 3 terminals.

The service specifications are comprised of two parts:

‑ the control procedures described in CCITT Recommendation T.30 and

‑ the document transmission coding described in CCITT Recommendation T.4.

The GSM facsimile group 3 Teleservice is intended to allow connections between facsimile group 3 terminals using:

‑ a GSM PLMN as stand‑alone facility for mobile‑to‑mobile communication;

‑ a GSM PLMN to have access to fixed networks PSTN and/or ISDN for mobile to/from fixed network communication.

For this Teleservice, the coding of the facsimile document is as per CCITT Recommendation T.4 and the protocol as per CCITT Recommendation T.30 both modified within the PLMN as detailed in the present document.

The interworking between different networks is based on CCITT Recommendation X.300.

The particular features of this Teleservice are:

‑ it uses point‑to‑point communication;

‑ the information transfer mode is circuit, duplex, synchronous;

‑ the information transfer capability is alternate speech/ facsimile group 3 or facsimile group 3 only;

‑ both mobile originated and mobile terminated calls are supported;

‑ different end‑to‑end message speeds as per CCITT Recommendation T.30 may be used within the same connection to match the appropriate quality requirements;

‑ use of the standard synchronous terminal adaptation function for non‑transparent network support (as per GSM 07.03) within the MS is envisaged.