ATA Routing Field Reference

WAN Setup page

A

Router tab > WAN Setup page >

Optional Settings section

HostName

The host name of the ATA device.

 

 

Domain

The network domain of the ATA device.

 

 

Primary DNS

The DNS server that is used by the ATA device.

 

NOTE: When DHCP is enabled, you can enter the IP

 

address of a DNS server in addition to DHCP-supplied

 

DNS servers. When DHCP is disabled, enter the

 

primary DNS server. The default is 0.0.0.0.

 

 

Secondary DNS

Sets the secondary DNS server to take over if

 

problems are discovered with the Primary DNS server.

 

NOTE: When DHCP is enabled, you can enter the IP

 

address of a primary or secondary DNS server in

 

addition to DHCP-supplied DNS servers. When DHCP is

 

disabled, enter the primary and secondary DNS server.

 

The default is 0.0.0.0.

 

 

DNS Service Order

The method for selecting the DNS server: Manual

 

(enter the IP address of the DNS server manually; that is

 

do not look at the DHCP-supplied DNS table), Manual/

 

DHCP, and DHCP/Manual.

 

 

DNS Query Mode

The mode of DNS query: parallel or sequential.

 

NOTE: With parallel DNS query mode, the ATA device

 

sends the same DNS lookup request to all the DNS

 

servers at the same time, and the first incoming reply is

 

accepted by the ATA device.

 

The default is parallel.

 

 

Primary NTP Server

The IP address or name of the primary NTP server.

 

 

Secondary NTP Server

The IP address or name of the secondary NTP server.

 

 

ATA Administration Guide

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Cisco Systems WRP400, SPA2102, SPA3102, SPA8000, PAP2T manual Optional Settings section, DHCP, and DHCP/Manual
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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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