Agent to Cisco ATA | Cisco Systems ATA 186, ATA 188 instruction

Appendix C MGCP Call Flows

Step	Action	Log

38.	OK—Cisco ATA 1 to Call Agent	200 57736 OK

39.	ATA 2 Connection mode changes to receive-only—Call Agent to	mdcx 57737 aaln/1@[192.168.3.33] MGCP 1.0
	Cisco ATA 2	K: 57722-57724
		C: 26962
		I: 0
		X: 29653
		R: L/hu(N),L/hf(N),D/[0-9*#](N)
		S:
		D: x
		N: 192.168.3.76:2427
		L: p:20, a:PCMU, t:00
		M: recvonly
		v=0
		c=IN IP4 192.168.3.33
		m=audio 10000 RTP/AVP 0

40.	OK—Cisco ATA 2 to Call Agent	200 57737 OK

41.	Cisco ATA 2 hangs up—Cisco ATA 2 to Call Agent	NTFY 19 aaln/1@[192.168.3.33] MGCP 1.0
		N: 192.168.3.76:2427
		X: 29653
		O: L/hu
		K: 18

42.	OK—Call Agent to Cisco ATA 2	200 19 OK

43.	Cisco ATA 2 Connection is deleted—Call Agent to Cisco ATA 2	dlcx 57740 aaln/1@[192.168.3.33] MGCP 1.0
		K: 57737
		C: 26962
		I: 0
		X: 29654
		S:
		N: 192.168.3.76:2427

44.	OK—Cisco ATA 2 to Call Agent	200 57740 OK

45.	Call Agent requests Cisco ATA 2 to report off-hook event—Call	rqnt 57741 aaln/1@[192.168.3.33] MGCP 1.0
	agent to Cisco ATA 2	X: 29655
		R: L/hd(N)
		N: 192.168.3.76:2427

46.	OK—Cisco ATA 2 to Call Agent	200 57741 OK

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

	C-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.

Cisco Systems ATA 186, ATA 188 manual ATA 2 Connection mode changes to receive-only-Call Agent to

Models: ATA 188 ATA 186

Appendix C MGCP Call Flows

Step

Action

ATA 2 Connection mode changes to receive-only—Call Agent to

OK—Cisco ATA 2 to Call Agent

Cisco ATA 2 hangs up—Cisco ATA 2 to Call Agent

Cisco ATA 2 Connection is deleted—Call Agent to Cisco ATA 2

OK—Cisco ATA 2 to Call Agent

agent to Cisco ATA 2

OK—Cisco ATA 2 to Call Agent

OL-4803-01

ATA 188, ATA 186 specifications