Dialogic Network Device 206-412-06 Referenzhandbuch - Seite 4

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4.2.2.7 CAPI_GET_PROFILE

Applications call CAPI_GET_PROFILE to retrieve capability information from COMMON-ISDN-API.

COMMON-ISDN-API copies information about implemented features, the total number of controllers, and

protocols supported by the requested controller to a 64-byte buffer passed by the calling application. The

application

must

ignore

CAPI_GET_PROFILE fills the buffer with the following structure:

Type

2 bytes

4 bytes

unknown

bits.

COMMON-ISDN-API

Description

number of installed controllers, least significant byte first

number of supported B-channels, least significant byte first

Global Options (bit field):

[0]: internal controller supported

[1]: external equipment supported

[2]: Handset supported (external equipment must also be set)

[3]: DTMF supported

[4]: Supplementary Services (see Part III)

[5]: channel allocation supported (leased lines)

[6]: parameter B channel operation supported

[7]: Line Interconnect supported

[8]...[31]: reserved

B1 protocol support (bit field):

[0]: 64 kbit/s with HDLC framing, always set.

[1]: 64 kbit/s bit-transparent operation with byte framing

from the network

[2]: V.110 asynchronous operation with start/stop byte

framing

[3]: V.110 synchronous operation with HDLC framing

[4]: T.30 modem for fax group 3

[5]: 64 kbit/s inverted with HDLC framing.

[6]: 56 kbit/s bit-transparent operation with byte framing

from the network

[7]: Modem with all negotiations

[8]: Modem asynchronous operation with start/stop byte

framing

[9]: Modem synchronous operation with HDLC framing

[10]...[31]: reserved

B2 protocol support (bit field):

[0]: ISO 7776 (X.75 SLP), always set

[1]: Transparent

[2]: SDLC

[3]: LAPD in accordance with Q.921 for D-channel X.25

(SAPI 16)

[4]: T.30 for fax group 3

[5]: Point-to-Point Protocol (PPP)

[6]: Transparent (ignoring framing errors of B1 protocol)

[7]: Modem error correction and compression (V.42 bis or

MNP5)

[8]: ISO 7776 (X.75 SLP) modified supporting V.42 bis

compression

[9]: V.120 asynchronous mode

[10]: V.120 asynchronous mode supporting V.42 bis

[11]: V.120 bit-transparent mode

[12]: LAPD in accordance with Q.921 including free SAPI

selection

[13]...[31]: reserved

sets

reserved

fields

zero.