Chapter 4 Basic and Additional SIP Services

Additional SIP Services

Table 4-2 Additional SIP Services (continued)

SIP Service

Description

Reference

 

 

 

Progress tones

Values for the following parameters must be

See the “Tone

 

determined based on the country in which the

Parameters” section on

 

Cisco IP Phone is located:

page 8-21.

 

DialTone

 

 

DialTone2

 

 

BusyTone

 

 

ReorderTone

 

 

RingBackTone

 

 

CallWaitTone

 

 

 

 

Receiver-tagged

You can use the ConnectMode parameter to disable or

See the “Audio

VIA header

enable the processing of the received = parameter in the

Parameters” section on

 

Via header. This feature is disabled by default.

page 8-24.

 

 

 

Setting up and

You can user the Cisco IP Phone to make a direct

See the “Setting Up and

placing a call

IP-to-IP calls without using a SIP proxy.

Placing a Call Without

without using a

 

 

Using a SIP Proxy”

SIP proxy

 

 

section on page 4-10.

 

 

 

 

Setting Up and Placing a Call Without Using a SIP Proxy

The Cisco IP Phone models 7905G and 7912G support direct IP-to-IP calls without using a SIP proxy. When a call is placed, the phone sends the INVITE request directly to the remote user agent and expects the usual 100/180/200 responses from the user agent.

 

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

4-10

OL-4277-01

Page 70
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Cisco Systems 7905G, 7912G manual Setting Up and Placing a Call Without Using a SIP Proxy

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.