Configuring the PSTN (FXO) Gateway on the SPA3102

6

 

How PSTN-To-VoIP Calls Work

 

 

 

 

 

Table 2 Parameters for Two-Stage Dialing

Parameter

Web

Description

Values

 

Page

 

 

 

 

 

 

VoIP Caller 1/2/

PSTN

The PIN for VoIP Caller 1, 2, 3, 4, 5, 6, 7,

31-character string

3/4/5/6/7/8 PIN

Line

or 8.

 

 

 

 

 

VoIP Caller 1/2/

PSTN

Specifies which dial plan to be used

Choice of 1 to 8

3/4/5/6/7/8 DP

Line

for this VoIP caller. If 0, dial plan

 

 

 

processing is disabled; the given

 

 

 

target number is dialed to the PSTN

 

 

 

as is.

 

 

 

 

 

How PSTN-To-VoIP Calls Work

PSTN-To-VoIP calls can be made with two-stage dialing only. The only authentication method available is the PIN method.

The ATA device takes the FXO port off hook after a configurable number of rings. If PIN Authentication is enabled, it prompts the caller to enter the PIN number followed by a # key. The Inter-PIN-digit timeout is set at 10 seconds. Up to eight PSTN PIN numbers can be configured in the ATA device. If the given PIN does not match any of the PSTN PIN values, the ATA device plays the reorder tone to the FXO port for up to 10 seconds, and then takes the FXO port on-hook. If the given PIN matches one of PSTN PIN values, the ATA device plays dial tone to the FXO port and is ready to accept digits for the target VoIP number from the PSTN caller. The collected digits are processed by the dial plan associated with the PIN number.

NOTE If Authentication is disabled, a default dial plan is used for all PSTN callers.

ATA Administration Guide

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Cisco Systems SPA2102, SPA3102, WRP400 How PSTN-To-VoIP Calls Work, Parameters for Two-Stage Dialing Web Description Values
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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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