Chapter 8 Profile and Web Page Parameters and Defaults

SIP Parameters

Table 8-2 SIP Parameters (continued)

Parameter

Description

 

 

MediaPort

Port from which the phone transmits and receives media streams. This value

 

must be an even number; each connection uses the next available

 

even-numbered port for RTP. 0=Use the default value.

 

This value can range from 0 to 65535.

 

Value type: Even integer.

 

Default value: 16384

 

 

OutBoundProxy

IP address or URL of the outbound proxy server, with or without a port

 

parameter; for example, 209.165.201.30, 209.165.201.30.5060,

 

209.165.201.30:5061, sip.cisco.com, sip.xyz.cisco.com:5061.

 

For IP address, the port, if included, can be preceded by a period (.) or a

 

colon (:).

 

For URL, the port must be preceded by a colon (:).

 

If no port is specified, the default port 5060 is used.

 

Value type: Alphanumeric string, up to 31 characters.

 

Default value: 0

 

 

NatServer

Specifies a server to which a dummy, single-byte UDP packed is sent to

 

maintain a Network Address Translation (NAT) during a session.

 

This parameter can contain up to 47 characters in fully qualified domain name

 

(FQDN) or IP format with an optional port parameter (separated from the

 

address by a colon); for example, xyz.cisco.com;1234. If no port is specified,

 

the phone uses port 5060.

 

Value type: IP address, up to 47 characters.

 

Default value: 0.0.0.0 (port 5060 will be used)

 

 

NatTimer

Retransmission interval (in seconds) for sending a dummy packet to the server

 

specified with the NatServer parameter, specified in bits 0-11 the parameter.

 

The upper 20 bits are reserved and should be set to 0.

 

Value type: Bitmap.

 

Default value: 0x00000000 (no dummy packets will be sent to NatServer)

 

 

 

Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)

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7912G, 7905G specifications

Cisco Systems is a leading provider of networking and telecommunications equipment, and among its extensive range of products, the Cisco 7900 Series of IP phones has made a notable impact in enterprise communication. Key models in this series include the Cisco 7905G, 7912G, and 7902G, each designed to enhance productivity through advanced features, intuitive interfaces, and robust technology.

The Cisco 7905G is designed for basic telephony needs and is ideal for administrative environments or areas with high call volumes. It features a large single-line LCD display, providing users with clear visibility of call information. The phone supports Power over Ethernet (PoE), making installation easier and reducing clutter by eliminating the need for an additional power supply. Its hands-free and headset support enhances user convenience, allowing for easy multitasking during calls.

Moving on to the Cisco 7912G, this model is designed for more demanding communication requirements. It features a larger, backlit display, providing improved visibility in various lighting conditions. The Cisco 7912G supports up to 12 programmable line or feature keys, giving users the flexibility to tailor the phone to their specific needs. Additionally, it incorporates advanced audio technologies, such as wideband audio for enhanced voice clarity and a built-in speakerphone, allowing users to communicate effectively in busy environments.

The Cisco 7902G, while offering basic features, is a reliable choice for users who need straightforward, cost-effective telephony solutions. It features an intuitive design with three dedicated buttons for line status, a built-in speakerphone, and support for wideband audio. The phone is geared for users who require essential telephony features without the complexity of additional functionalities, making it suitable for front-desk and general office use.

Overall, these models within the Cisco 7900 series exemplify the company's commitment to providing high-quality enterprise communication tools. With a focus on advanced audio technologies, user-friendly interfaces, and adaptability to various business environments, the Cisco 7905G, 7912G, and 7902G cater to the diverse needs of modern organizations. As companies continue to pursue seamless communication, these IP phones remain a valuable asset in their telephony infrastructure, enhancing collaboration and productivity among teams everywhere.