Configurable Feature Related Parameter

Chapter 4 Cisco ATA-Supported MGCP Services

Complete Reference Table of all Cisco ATA MGCP Services

Table 4-1 Configurable Features and Related Parameters for MGCP (continued)

Configurable Feature	Related Parameter

Fax pass-through	AudioMode, page 5-20
	ConnectMode, page 5-24

G.711 codec	AudioMode, page 5-20

G.711 silence suppression	AudioMode, page 5-20

Hook-flash event time requirements	SigTimer, page 5-26

ID of primary Call Agent	CA0orCM0, page 5-12

ID of secondary Call Agent	CA1orCM1, page 5-13

Listening port for MGCP commands	MGCPPort, page 5-16

Low bit-rate codec selection	LBRCodec, page 5-15

MGCP version string identifier	MGCPVer, page 5-18

Mid-call service style—Bellcore, Cisco VG248	ConnectMode, page 5-24
or Cisco ATA

Named Signaling Event (NSE) payload number	ConnectMode, page 5-24

Registration	ConnectMode, page 5-24
	(Also see the “Endpoints and Connections”
	section on page 4-3and the “Cisco ATA
	Registration Process with MGCP” section on
	page 4-4.)

Ring-cadence pattern	RingCadence, page 5-40

Real-Time Transfer Protocol (RTP) media port	MediaPort, page 5-17

Real-Time Transfer Protocol (RTP) packet size	NumTxFrames, page 5-21

Retransmission interval for MGCP commands	RetxIntvl, page 5-17

Retransmission of commands—Maximum	RetxLim, page 5-17
number of times to retransmit

Secondary domain name server	DNS2IP, page 5-11

Static network router probe	OpFlags, page 5-27

TFTP file—Set to not use internally generated	OpFlags, page 5-27
name

Tones: BusyTone, CallWaitTone	Tone Configuration Parameters, page 5-29
ConfirmTone, DialTone, ReorderTone, and
RingBackTone parameters

Tracing	TraceFlags, page 5-41

Type of Service (TOS) bits	TOS, page 5-29

VLAN encapsulation	OpFlags, page 5-27

VLAN 802.1Qtags	OpFlags, page 5-27
VLAN UDP and TCP COS fields

VLAN mode	OpFlags, page 5-27

Web configuration—disallowing	OpFlags, page 5-27

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

4-6	OL-4803-01

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.

Configurable Feature

Related Parameter

OpFlags, page 5-27

OL-4803-01

ATA 188, ATA 186 specifications