Introducing Cisco Small Business Analog Telephone Adapters

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ATA Software Features

 

 

 

 

 

Feature

Description

 

 

Adjustable Audio

This feature allows the user to set the number of audio

Frames Per Packet

frames contained in one RTP packet. Packets can be

 

adjusted to contain from 1–10 audio frames. Increasing the

 

number of packets decreases the bandwidth utilized, but

 

it also increases delay and may affect voice quality. See

 

the RTP Packet Size parameter found in the SIP tab in the

 

“ATA Voice Field Reference,” on page121.

 

 

DTMF

The ATA device may relay DTMF digits as out-of-band

 

events to preserve the fidelity of the digits. This can

 

enhance the reliability of DTMF transmission required by

 

many IVR applications such as dial-up banking and airline

 

information. DTMF is configured in the DTMF Tx Mode

 

parameter found in the Line tabs. See the “ATA Voice Field

 

Reference,” on page121.

 

 

Call Progress Tone

The ATA device has configurable call progress tones. Call

Generation

progress tones are generated locally on the ATA device so

 

an end user is advised of status (such as ringback).

 

Parameters for each type of tone (for instance a dial tone

 

played back to an end user) may include frequency and

 

amplitude of each component, and cadence information.

 

See the Regional tab in the “ATA Voice Field Reference,”

 

on page121.

 

 

Call Progress Tone

This feature allows the user to hear the call progress tones

Pass Through

(such as ringing) that are generated from the far-end

 

network. See the Regional tab in the “ATA Voice Field

 

Reference,” on page121.

 

 

Echo Cancellation

Impedance mismatch between the telephone and the IP

 

Telephony gateway phone port can lead to near-end echo.

 

The ATA device has a near-end echo canceller that

 

compensates for impedance match. The ATA device also

 

implements an echo suppressor with comfort noise

 

generator (CNG) so that any residual echo is not

 

noticeable. Echo Cancellation is configured in the

 

Regional, Line, and PSTN Line tabs. See “ATA Voice Field

 

Reference,” on page121.

 

 

ATA Administration Guide

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Cisco Systems SPA3102, SPA2102, WRP400, SPA8000, PAP2T manual ATA Voice Field Reference, on page121, Dtmf
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PAP2T, SPA8000, SPA3102, WRP400, SPA2102 specifications

The Cisco Systems SPA2102 is a versatile Voice over Internet Protocol (VoIP) adapter that serves as a bridge between traditional telephony systems and modern IP networks. Designed primarily for small to medium businesses, the SPA2102 is highly regarded for its reliability, ease of use, and rich feature set. This device allows users to make and receive phone calls over the internet while maintaining the ability to connect traditional analog phones.

One of the standout features of the SPA2102 is its dual-port capability. The device includes two FXS ports, allowing users to connect two separate analog telephones. This makes it an ideal choice for businesses that want to retain their existing telephony infrastructure while transitioning to a VoIP system. The ability to utilize two telephone lines simultaneously provides flexibility and convenience, especially for users in a busy office environment.

The SPA2102 leverages Session Initiation Protocol (SIP) technology, which is widely recognized for its robustness and interoperability. The support for SIP ensures that the SPA2102 can work seamlessly with various VoIP service providers, offering users a broad range of options for their telecommunication needs. In addition to SIP, the device supports various codecs, including G.711, G.726, and G.729, allowing for flexible audio quality settings and bandwidth management.

Security is also a critical aspect of the SPA2102. It incorporates advanced encryption methods, such as Secure Real-time Transport Protocol (SRTP) and Transport Layer Security (TLS), to protect voice communications from potential eavesdropping. This focus on security makes the SPA2102 a reliable choice for businesses concerned about the confidentiality of their conversations.

The device is easy to configure and manage, thanks to its web-based interface. This allows administrators to quickly set up the adapter, manage network settings, and troubleshoot any issues that may arise. Furthermore, the SPA2102 supports Quality of Service (QoS) features, ensuring that voice traffic is prioritized over other types of network traffic, which enhances call quality and reliability.

Overall, the Cisco SPA2102 is a powerful, user-friendly VoIP adapter that combines traditional telephony with modern IP technology. Its dual-port capability, support for SIP, extensive security features, and ease of configuration make it a solid choice for businesses looking to innovate their communication systems while minimizing disruption. Whether used in a small office or a larger organizational setting, the SPA2102 continues to be a reliable component of VoIP solutions.
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