ATA Voice Field Reference

SIP page

B

SIP User Agent

User-Agent header used in outbound requests.

Name

The default is $VERSION. If empty, the header is not

 

 

included. Macro expansion of $A to $D corresponding to

 

GPP_A to GPP_D allowed.

 

 

SIP Server Name

Server header used in responses to inbound responses.

 

The default is $VERSION.

 

 

SIP Reg User Agent

User-Agent name to be used in a REGISTER request. If this

Name

value is not specified, the SIP User Agent Name parameter

 

is also used for the REGISTER request.

 

The default is blank.

 

 

SIP Accept

Accept-Language header used. There is no default (this

Language

indicates ATA device does not include this header). If

 

empty, the header is not included.

 

 

DTMF Relay MIME

MIME Type used in a SIP INFO message to signal a DTMF

Type

event.

 

The default is application/dtmf-relay.

 

 

Hook Flash MIME

MIME Type used in a SIP INFO message to signal a hook

Type

flash event.

 

The default is application/hook-flash.

 

 

Remove Last Reg

Lets you remove the last registration before registering a

 

new one if the value is different. Select yes or no from the

 

drop-down menu.

 

The default is no.

 

 

Use Compact

Lets you use compact SIP headers in outbound SIP

Header

messages. Select yes or no from the drop-down menu. If

 

set to yes, the ATA device uses compact SIP headers in

 

outbound SIP messages. If set to no, the ATA device uses

 

normal SIP headers. If inbound SIP requests contain

 

compact headers, ATA device reuses the same compact

 

headers when generating the response regardless the

 

settings of the Use Compact Header parameter. If inbound

 

SIP requests contain normal headers, ATA device

 

substitutes those headers with compact headers (if

 

defined by RFC 261) if Use Compact Header parameter is

 

set to yes.

 

The default is no.

 

 

ATA Administration Guide

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Cisco Systems SPA3102, SPA2102, WRP400, SPA8000, PAP2T Default is application/dtmf-relay, Default is application/hook-flash
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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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