Configuring the PSTN (FXO) Gateway on the SPA3102

6

 

Call Scenarios

 

 

 

 

 

Without Authentication

This scenario can also be implemented without authentication, using one-stage or two-stage dialing, as in the HTTP Authentication case. The default VoIP caller dial plan is used in this scenario. Authentication is performed when the method is none or when the source IP address of the inbound INVITE matches one of the VoIP Access List patterns.

The following table lists the parameters used in VoIP to PSTN Call With and

Without Authentication.

Parameter

Web

Description

Value

 

Page

 

 

 

 

 

 

VoIP

PSTN

Delay in seconds before auto-answering

The range is 0-

Answer

Line

inbound VoIP calls for the FXO account.

255. The

Delay

 

 

default is 3.

 

 

 

 

Outside Dial

Regional

Alternative to the Dial Tone. It prompts

The default is

Tone

 

the user to enter an external phone

420@-19;10(*/

 

 

number, as opposed to an internal

0/1).

 

 

extension. It is triggered by a comma

 

 

 

encountered in the dial plan.

 

 

 

 

 

VoIP Caller

PSTN

A comma-separated list of caller

For example:

ID Pattern

Line

number templates such that callers

1408*,

 

 

with numbers not matching any of

1512???1234.

 

 

these templates are rejected for

NOTE: ‘?’

 

 

PSTN gateway service regardless of

 

 

matches any

 

 

the setting of the authentication

 

 

single digit; ‘*’

 

 

method. The comparison is applied

 

 

matches any

 

 

before the access list is applied. If

 

 

number of

 

 

this parameter is blank (not

 

 

digits.

 

 

specified), all callers are considered

 

 

 

 

 

for PSTN gateway service.

The default is

 

 

 

 

 

 

blank.

 

 

 

 

VoIP

PSTN

A comma-separated list of IP address

For example:

Access List

Line

templates, such that callers with a

192.168.*.*,

 

 

source IP address matching any of

66.43.12.1??.

 

 

the templates are accepted for PSTN

The default is

 

 

gateway service without further

 

 

blank.

 

 

authentication.

 

 

 

 

 

 

 

ATA Administration Guide

108

Page 110
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Cisco Systems SPA2102, SPA3102, WRP400, SPA8000, PAP2T manual Without Authentication

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.