5 Network characteristics

09.063GPPTS

The key characteristics of networks concerned are listed in table 2/09.06.

5.1 Characteristics of GSM PLMNs

The GSM PLMN is fully defined in the GSM series of specifications.

5.2 Characteristics of PSPDNs

These are defined in the relevant CCITT X series recommendations, such as X.1, X.2, X.10, X.25, and X.75.

5.3 Characteristics of ISDN

These are defined in the CCITT I‑series recommendations. The services and standards for the pan‑European ISDN are identified in ETR 010.

5.4 Characteristics of the packet service provided by the PH

The packet services supported via the packet handler interface (PHI) are defined in ETS 300 099. Support for both the ISDN X.31 Case A and Case B are specified there.

Table 2/GSM 09.06: Key characteristics of networks concerned

Characteristics

GSM PLMN

ISDN

PSPDN

User‑network interface

Digital

Digital

User‑network signalling

GSM 04.08

I.441/I.451

X.25, X.31, X.32

User‑terminal equipment

MT0,

Digital TE

DTE

support

DTE+MT1,

(ISDN NT,

DTE+MT2

TE1 or TE2+TA)

see GSM 04.02

see I.441

Inter‑exchange

SS No.7

SS No.7

Proprietary,

signalling

ISUP,TUP+,

ISUP, TUP+

X.75

MAP

X.75

Transmission facilities

Digital

Digital

Digital

Exchange types

Digital

Digital

Digital

Information transfer mode

Circuit

Cct or Packet

Information transfer

Speech,

Speech,

unrestr.digital

capabilities

unrestr.digital,

unrestr.digital

altern. speech/

3.1 kHz audio

fax group 3, etc.

video, etc.

5.5 Characteristics of the packet service provided by a PH assuming the role of an AU or by X.32

The packet services provided by the PH assuming the role of an AU is defined in the ETS 300 099 (X.31 Case A). The packet service provided via a modem is defined in CCITT X.32.