Caller ID

Caller ID

8

This section describes Caller ID for the United States. Caller ID is a service that lets the called party know the telephone number of the caller before the call is answered. The information transmitted to the called party via Caller ID includes the caller’s name, call date, the call time, and the call number. This service is not available everywhere due to central office telephone equipment limitations and legal prohibition in some locations.

The +VCID = n command controls the reporting and presentation of data associated with the Caller ID services in United States and Canada in the ICLID (incoming call line ID) data format. The ICLID data comes in one of two formats: SDM (single data message) format or MDM (multiple data message) format. In both formats, data is provided as data items and packet control information.

When enabled, the DCE reports any Caller ID information detected after the first ring message (note that more <CR> <LF> combinations may occur after the RING result code). All data items are reported using the <tag> <=> <value> pair format. Spaces are present on both sides of the equal sign.

This chipset allows for two types of Caller ID reporting formats, formatted and unformatted. In formatted reporting, DCE does not report any Caller ID information if a check sum error is detected in the Caller ID packet. If the DCE receives multiple copies of the Caller ID packets, the DCE sends only one of the correct packets to the DTE. If the DCE has never presented a correct packet but has received the line seizure information at least once, the DCE returns <MESG> <=> <CALID_202>.

The DCE breaks up the presentation of the date and time into two separate <Tag><Value> pairs for those data items where the date and time appear together.

Table 27. Caller ID Tags for Formatted Reporting

Tag

Description

 

 

DATE

DATE = MMDD where MM is the month number, 01 through 12, and DD is the day number, 01

through 31. All numbers are in ASCII decimal. For numbers less than 10, a filling ASCII zero is used.

 

 

 

 

TIME = HHMM where HH is the hour number, 00 through 23, and MM is the minute number, 00

TIME

through 59. All numbers are in ASCII decimal format. For numbers less than 10, a filling ASCII zero is

 

used.

 

 

 

NMBR = <number> or P or O (ASCII 4Fh) where <number> is the telephone number of the caller,

NMBR

where P indicates that the calling number information is not available since the originating caller has

requested private service, and where O indicates that the calling number information is not available

 

 

since the out of area code or the service is unavailable.

 

 

NAME

NAME = <listing name> where <listing name> is the subscription listing name.

 

 

MESG

MESG = <data tag> <length of message> <data> <checksum> in printable ASCII (to avoid possible

problems with binary output numbers).

 

 

 

If a data tag is unrecognizable, the DCE presents the given data item’s information using the MESG tag. The DCE follows the conventions of the unformatted reporting form (defined below) where applicable for the given data item only.

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536EX Chipset Developer’s Manual

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Intel 537EX manual Caller ID Tags for Formatted Reporting, Tag Description
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537EX specifications

The Intel 537EX is a powerful and innovative embedded processor designed for a range of applications, particularly in the fields of industrial automation, telecommunications, and transport management systems. This processor is a member of Intel's embedded product line, tailored specifically to meet the demands of systems that require high reliability and long lifecycle support.

One of the main features of the Intel 537EX is its multi-core architecture, which enables efficient parallel processing capabilities. This allows for the execution of multiple tasks simultaneously, significantly improving overall system performance. The processor also incorporates Intel’s advanced power management technology, which ensures that the device consumes energy efficiently, enhances thermal performance, and prolongs the lifespan of the system.

The Intel 537EX supports a range of connectivity options, including high-speed Ethernet and Serial ATA interfaces. This ensures that it can easily integrate into existing systems, seamlessly supporting applications that require robust data transfer capabilities. Additionally, the processor is equipped with multiple I/O ports, facilitating the connection of various peripherals and sensors, which is crucial in industrial applications.

One of the standout technologies within the Intel 537EX is its support for hardware virtualization. This feature allows for the creation of multiple virtual environments within a single physical structure, optimizing resource utilization and enhancing system flexibility. Additionally, Intel’s integrated security technologies provide a significant layer of protection against potential threats, ensuring that embedded systems remain secure.

Another characteristic of the Intel 537EX is its extensive software support, which includes compatibility with various operating systems and development environments. This versatility makes it an attractive choice for developers looking to build or upgrade their embedded systems. With access to Intel's comprehensive software tools, developers can quickly optimize applications to take full advantage of the processor's capabilities.

The Intel 537EX also boasts excellent thermal performance, allowing it to operate efficiently in harsh environments. This is crucial for embedded applications in industrial settings where temperature fluctuations are common. Overall, the Intel 537EX is engineered to deliver high-performance processing power, superior connectivity, and enhanced security, solidifying its position as a reliable choice for demanding embedded applications.
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