ATA Voice Field Reference

PSTN Line page (SPA3102)

B

Detect (PSTN) Long

If enabled, SPA will disconnect both call legs when the

Silence

PSTN side has no voice activity for a duration longer than

 

the length specified in the Long Silence Duration

 

parameter during a gateway call

 

The default is yes.

 

 

Min CPC Duration

Specify the minimum duration of a low tip-and-ring voltage

 

(below 1V) for the Gateway to recognize it as a CPC signal

 

or PSTN line removal. The default is 0.2.

 

 

Detect Disconnect

If enabled, SPA will disconnect both call legs when it

Tone

detects the disconnect tone from the PSTN side during a

 

gateway call. Disconnect tone is specified in the

 

Disconnect Tone parameter, which depends on the region

 

of the PSTN service.

 

The default is yes.

 

 

(PSTN) Long

This value is minimum length of PSTN silence (or inactivity)

Silence Duration

in seconds to trigger a gateway call disconnection if

 

Detect Long Silence is yes.

 

The default is 30.

 

 

Silence Threshold

This parameter adjusts the sensitivity of PSTN silence

 

detection. Choose from {very low, low, medium, high, very

 

high}. The higher the setting, the easier to detect silence

 

and hence easier to trigger a disconnection.

 

The default is medium.

 

 

ATA Administration Guide

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Cisco Systems SPA2102, SPA3102, WRP400, SPA8000, PAP2T manual Detect Long Silence is yes
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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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