Appendix B Formatting the Compact Flash Memory Cards

File and Directory Operations

The following example shows sample output for displaying the contents of an external compact flash memory card using the show slot0: command:

Router# show slot0:

System CompactFlash directory:

File Length Name/status

15190020 cvg224-i-mz

26458584 cvg224-i-mz

316535740 cvg224-telcoent-mz

[28184536 bytes used, 100266024 available, 128450560 total]

125440K bytes of ATA System CompactFlash (Read/Write)

Delete Files from Compact Flash Memory

To delete a file from compact flash memory, enter the delete {flash: slot0:} command, followed by the

squeeze {flash: slot0:} command.

When a file is deleted in the Class B flash file system, the memory space occupied by the deleted file is not released until you enter the squeeze {flash: slot0:} command. Although the memory space once occupied by the deleted file remains, the deleted file cannot be recovered. To release the memory space occupied by a deleted file, enter the squeeze {flash: slot0:} command.

Note The dir {flash: slot0:} command does not show deleted files; the show {flash: slot0:} command shows all files, including any deleted files if the squeeze {flash: slot0:} command has not been entered.

The following example shows sample output for deleting a Cisco IOS file from an external compact flash memory card, and then releasing the memory space originally occupied by the file:

Router# dir slot0:

Directory of slot0:/

1

-rw-

6458208

<no

date>

cvg224-i-mz.tmp

2

-rw-

6458208

<no

date>

cvg224-i-mz

16056320 bytes total (3139776 bytes free)

Router# delete slot0:cvg224-i-mz.tmp

Delete filename [cvg224-i-mz.tmp]?

Delete slot0:cvg224-i-mz.tmp? [confirm]

Router# dir slot0:

Directory of slot0:/

2 -rw-

6458208

<no date> cvg224-i-mz

16056320 bytes total (3139776 bytes free)

Router# show slot0:

Slot0 CompactFlash directory:

File Length Name/status

16458208 cvg224-i-mz.tmp [deleted]

26458208 cvg224-i-mz

[12916544 bytes used, 3139776 available, 16056320 total]

15680K bytes of ATA Slot0 CompactFlash (Read/Write)

Router# squeeze slot0:

Cisco VG224 Voice Gateway Software Configuration Guide

 

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OL-5005-01

 

 

 

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Cisco Systems VG224 Delete Files from Compact Flash Memory, Router# show slot0, Router# dir slot0, Router# squeeze slot0

VG224 specifications

The Cisco Systems VG224 is a versatile VoIP (Voice over Internet Protocol) gateway designed to facilitate the integration of traditional phone systems with modern IP-based communications. This device plays a crucial role in providing connectivity between analog phones and digital networks, allowing organizations to transition smoothly from legacy telephony systems to IP telephony.

One of the standout features of the VG224 is its ability to support up to 24 analog phone lines. This scalability makes it an ideal choice for small to medium-sized businesses that require a dependable solution to handle their telephony needs without overspending on infrastructure. The VG224 acts as a bridge, converting analog voice signals into digital IP packets, thus enabling seamless communication over the Internet or intranets.

The VG224 is equipped with a range of technologies that enhance its functionality and reliability. Voice activity detection (VAD), comfort noise generation (CNG), and echo cancellation are just some examples of the advanced audio processing techniques integrated into the VG224. These technologies improve call quality by ensuring clear and uninterrupted conversations, even under varying network conditions.

In terms of characteristics, the VG224 features a user-friendly interface with a web-based management console, making it easy for network administrators to configure and manage the device remotely. This streamlined approach to management is crucial for businesses that require quick adjustments to their communication infrastructure without the need for extensive technical knowledge.

The VG224 supports multiple signaling protocols, including H.323, MGCP (Media Gateway Control Protocol), and SIP (Session Initiation Protocol). This flexibility allows it to integrate seamlessly with various IP telephony systems and offers businesses the option to utilize their preferred communication standards. Additionally, the device supports power over Ethernet (PoE), providing the convenience of powering devices through the same cable used for data connectivity, thus reducing the need for additional power sources.

In conclusion, the Cisco Systems VG224 is a robust VoIP gateway that combines advanced technology with user-friendly features. Its capacity to support up to 24 analog lines, along with its compatibility with various signaling protocols, makes it an excellent choice for businesses looking to modernize their telecommunication systems while maintaining the reliability of traditional analog connections. With its ease of management and high-quality voice processing capabilities, the VG224 stands out as a key asset for any organization aiming to optimize its communication infrastructure.