ATA Voice Field Reference

SIP page

B

G726r32 Codec

G.726-32 codec name used in SDP.

Name

The default is G726-32.

 

 

 

G726r40 Codec

G.726-40 codec name used in SDP.

Name

The default is G726-40.

 

 

 

G729a Codec

G.729a codec name used in SDP.

Name

The default is G729a.

 

 

 

G729b Codec

G.729b codec name used in SDP.

Name

The default is G729ab.

 

 

 

G723 Codec Name

G.723 codec name used in SDP.

 

The default is G723.

 

 

EncapRTP Codec

EncapRTP codec name used in SDP.

Name

The default is EncapRTP.

 

 

 

Voice tab > SIP page >

 

NAT Support Parameters section

Handle VIA

If you select yes, the ATA device processes the received

received

parameter in the VIA header (this value is inserted by the

 

server in a response to anyone of its requests). If you select

 

no, the parameter is ignored. Select yes or no from the

 

drop-down menu.

 

The default is no.

 

 

Handle VIA rport

If you select yes, the ATA device processes the rport

 

parameter in the VIA header (this value is inserted by the

 

server in a response to anyone of its requests). If you select

 

no, the parameter is ignored. Select yes or no from the

 

drop-down menu.

 

The default is no.

 

 

Insert VIA received

Inserts the received parameter into the VIA header of SIP

 

responses if the received-from IP and VIA sent-by IP

 

values differ. Select yes or no from the drop-down menu.

 

The default is no.

 

 

ATA Administration Guide

141

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Cisco Systems SPA8000, SPA2102, SPA3102, WRP400, PAP2T manual NAT Support Parameters section
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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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