Chapter 8 Troubleshooting

Using System Diagnostics

Example—Cisco ATA Configuration Update Message

<30>00:00:01 192.168.3.237 [03]:ATA Config Update OK

This message includes the following information:

Priority=30, which means that the facility value is 3 (system daemon) and the severity value is 6 ( informational messages). You can derive this information from RFC-3164.

The time offset of the message is 00:00:01, which means that the most recent Cisco ATA reset was one second earlier.

The tag value is 03, which corresponds to Cisco ATA configuration-update messages. This is derived from Table 5-7 on page 5-42.

This message shows indicates the status of the Cisco ATA configuration-file update.

Example—System Reboot Message

<31>00:00:00 192.168.3.220 [04]:Reboot from ata00012d010829(HWVersion1) @192.168.3.220 (warmStart:0)

This message includes the following information:

Priority=31, which means that the facility value is 3 (system daemon) and the severity value is 7 (debug-level messages). You can derive this information from RFC-3164.

The time offset of the message is 0.

The tag value is 04, which corresponds to system-reboot messages. This is derived from Table 5-7 on page 5-42.

This message includes the MAC address, hardware version and IP address of the Cisco ATA, and the reason for the reboot.

Example—Cisco ATA Event Messages

<142>00:00:40 192.168.3.169 [09]:[0]OFFHOOK <142>00:00:43 192.168.3.169 [09]:[0]ONHOOK <142>00:01:35 192.168.3.169 [09]:[0]OFFHOOK <142>00:01:50 192.168.3.169 [09]:[0]DTMF 2 , insum:830200 <142>00:01:50 192.168.3.169 [09]:[0]DTMF 2 , insum:854313 <142>00:01:50 192.168.3.169 [09]:[0]DTMF 1 , insum:868411 <142>00:01:50 192.168.3.169 [09]:[0]DTMF 2 , insum:861215 <142>00:01:50 192.168.3.169 [09]:[0]DTMF 0 , insum:858638 <142>00:01:51 192.168.3.169 [09]:[0]DTMF # , insum:845590 <142>00:01:51 192.168.3.169 [09]:[0]CLIP 22120

These messages include the following information:

Priority=142, which means that the facility value is 17 (local use 1) and the severity value is 6 (informational messages). You can derive this information from RFC-3164.

The time offset of the first message is 40 seconds.

The tag value is 09, which corresponds to Cisco ATA event messages. This is derived from Table 5-7 on page 5-42.

The ch (active line of the Cisco ATA) is line 0, which is the Phone 1 port of the Cisco ATA.

The messages include DTMF debugging (showing the key and the insum number), on/off hook, Caller ID (CLIP/CLIR) and the callee number.

Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for MGCP (version 3.0)

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Cisco Systems ATA 186, ATA 188 manual Example-Cisco ATA Configuration Update Message, Example-System Reboot Message

ATA 188, ATA 186 specifications

The Cisco Systems ATA 186, or Analog Telephone Adapter, revolutionized the way traditional telephony interacted with Voice over Internet Protocol (VoIP) systems. Designed primarily for home and small office use, the ATA 186 allows users to connect standard analog phones and fax machines to a network, enabling them to take advantage of the benefits of VoIP technology.

One of the defining features of the ATA 186 is its dual port architecture. It includes two FXS ports, allowing users to connect up to two analog telephones. This functionality means that multiple devices can leverage VoIP services simultaneously without the need for separate adapters for each phone. The flexibility of the ATA 186 helps streamline the user experience, facilitating voice communication over an IP network while ensuring users can still use their existing phone equipment.

The ATA 186 employs various technologies to maintain high-quality voice calls. It supports standard voice codecs such as G.711 and G.729, which ensure efficient bandwidth usage while preserving call clarity. The adaptive jitter buffer technology further enhances call quality, compensating for network variations and minimizing latency, which is crucial for clear and uninterrupted conversations.

Additionally, the ATA 186 provides users with advanced calling features that were traditionally available only on PBX systems. These features include caller ID, call waiting, and voicemail functionality, integrating seamlessly with typical telephony services. The device also supports T.38 fax relay, allowing users to send and receive faxes over the internet, thus addressing the needs of environments where fax communication remains essential.

The security of VoIP conversations is also a priority for the ATA 186. It employs encryption protocols such as Secure Real-time Transport Protocol (SRTP) and Transport Layer Security (TLS), ensuring that voice data is securely transmitted across the network. This focus on security helps protect sensitive information transmitted during calls.

Installation and configuration of the ATA 186 is streamlined, with an intuitive web-based interface that simplifies the setup process. This accessibility makes it suitable for users with varying levels of technical expertise, as frequently required adjustments, such as network configurations and firmware updates, can be easily managed.

In conclusion, the Cisco Systems ATA 186 stands out as a versatile and robust solution for users looking to integrate analog phones into a VoIP environment. With its dual port capabilities, high-quality voice codecs, advanced call features, and security measures, it offers a compelling choice for both residential and commercial users seeking seamless telephony integration. As technology evolves, devices like the ATA 186 remain cornerstones in bridging traditional telephony with modern communication systems.