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4/8/2010

These bit-flag constants describes special information signals that the network can use to report various reporting and network observation operations. They are special coded tone sequences transmitted at the beginning of network advisory recorded announcements.

The following table shows the LINESPECIALINFO constants.

Value Description

LINESPECIALINFO_CUSTIRREG = 0x00000002

This special information tone precedes a vacant number, AIS, Centrex number change and nonworking station, access code not dialed or dialed in error, or manual intercept operator message. These conditions are in the customer irregularity category. LINESPECIALINFO_CUSTIRREG is also reported when billing information is rejected and when the dialed address is blocked at the switch.

LINESPECIALINFO_NOCIRCUIT = 0x00000001

This special information tone precedes a no circuit or an emergency announcement. These announcements are in the trunk blockage category.

LINESPECIALINFO_REORDER = 0x00000004

This special information tone precedes a reorder announcement. This announcement is in the equipment irregularity category.LINESPECIALINFO_REORDER is also reported when the telephone is kept offhook too long.

LINESPECIALINFO_UNAVAIL = 0x00000010

Specifics about the special information tone are unavailable and will not become known.

LINESPECIALINFO_UNKNOWN = 0x00000008

Specifics about the special information tone are currently unknown but may become known later.

Remarks

The high-order 16 bits can be assigned for device-specific extensions. The low-order 16 bits are reserved.

Special information tones are defined for advisory messages and are not normally used for billing or supervisory purpose.

Requirements

Header tapi.h
Windows Embedded CE Windows CE 3.0 and later
Windows Mobile Windows Mobile Version 5.0 and later