Grandstream Networks GXP-280 manual Session Expiration, Min-SE, Ring Timeout, Caller Request Timer

Models: GXP-280

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Session Expiration

 

The SIP Session Timer extension enables SIP sessions to be periodically

 

 

 

 

“refreshed” via a SIP request (UPDATE, or re-INVITE. Once the session interval

 

 

 

 

expires, if there is no refresh via a UPDATE or re-INVITE message, the session is

 

 

 

 

terminated.

 

 

 

 

 

 

Session Expiration is the time (in seconds) at which the session is considered

 

 

 

 

timed out, provided no successful session refresh transaction occurs beforehand.

 

 

 

 

The default value is 180 seconds.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Min-SE

 

Defines the minimum session expiration (in seconds). Default is 90 seconds.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ring Timeout

 

Defines how long ring will ring when receiving a call. Default is 60 seconds.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Caller Request Timer

 

If set to “Yes”, the phone will use session timer when it makes outbound calls if

 

 

 

 

remote party supports session timer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Callee Request Timer

 

If selecting “Yes”, the phone will use session timer when it receives inbound calls

 

 

 

 

with session timer request.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Force Timer

 

If set to “Yes”, the phone will use session timer even if the remote party does not

 

 

 

 

support this feature. If set to “No”, the session timer is enabled only when the

 

 

 

 

remote party supports this feature. To turn off Session Timer, select “No” for

 

 

 

 

Caller Request Timer, Callee Request Timer, and Force Timer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UAC Specify Refresher

 

As a Caller, select UAC to use the phone as the refresher, or UAS to use the

 

 

 

 

Callee or proxy server as the refresher.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UAS Specify Refresher

 

As a Callee, select UAC to use caller or proxy server as the refresher, or UAS to

 

 

 

 

use the phone as the refresher.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Force INVITE

 

Session Timer can be refreshed using INVITE method or UPDATE method.

 

 

 

 

Select “Yes” to use INVITE method to refresh the session timer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Enable 100rel

 

PRACK (Provisional Acknowledgment) method enables reliability to SIP

 

 

 

 

provisional responses (1xx series). This is required to support PSTN inter-

 

 

 

 

networking..

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Account Ring Tone

 

There are 4 uniquely defined ring tones:

 

 

 

 

 

 

One (1) System Ring Tone: when selected, all calls will ring with system

 

 

 

 

ring tone.

 

 

 

 

 

 

Three (3) Customer Ring Tones: when selected, incoming calls from

 

 

 

 

designated account will play selected ring tone.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Send Anonymous

 

If this parameter is set to “Yes”, the “From” header in outgoing INVITE message

 

 

 

 

will be set to anonymous, essentially blocking the Caller ID from displaying.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Anonymous Method

 

Whether to use “<sip:anonymous@anonymous.invalid>” in the From Header or P-

 

 

 

 

Asserted-Identity header.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Anonymous Call

 

Default is NO. If set to YES, anonymous call will be rejected

 

 

Rejection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Auto Answer

 

Default is No. If set to “Yes”, GXP will automatically switch on speaker to answer

 

 

 

 

the incoming call. Set to Intercom/Paging mode, it will answer the call based on

 

 

 

 

the SIP info header from the server.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Grandstream Networks, Inc.

 

GXP User Manual

Page 34 of 38

 

 

 

 

Firmware 1.1.6.44

Last Updated: 12/2008

 

Page 34
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Grandstream Networks GXP-280 manual Session Expiration, Min-SE, Ring Timeout, Caller Request Timer, Callee Request Timer

GXP-280 specifications

The Grandstream Networks GXP-280 is a well-regarded model in the realm of VoIP (Voice over Internet Protocol) telephony, designed particularly for small to medium-sized businesses. This feature-rich IP phone is recognized for its reliability, ease of use, and versatile functionalities, making it a preferred choice among business users seeking a robust and effective communication solution.

One of the standout features of the GXP-280 is its support for up to four SIP accounts, enabling users to manage multiple lines simultaneously. This is particularly beneficial for businesses that require efficient call handling across different departments or clients. The phone sports an intuitive LCD display that provides clear visibility of caller information, call status, and feature access, ensuring user-friendly operation.

The GXP-280 is powered by advanced technologies such as HD Voice, which provides crystal-clear audio quality during calls. This clarity is further enhanced by the phone’s wideband audio support, allowing for richer sound reproduction that is crucial for effective communication. The phone is equipped with dual Ethernet ports, one of which supports Power over Ethernet (PoE), simplifying the installation process by allowing power and data to be transmitted through a single cable.

In terms of flexibility and personalization, the GXP-280 comes with programmable soft keys, allowing users to customize their interface to suit their specific workflow preferences. Additionally, the phone includes built-in Bluetooth support, which extends its capabilities to integrate with wireless headsets, enabling hands-free operations.

Security is also a pivotal aspect of the GXP-280, as it features encrypted signaling and media, ensuring that business communications remain secure from potential threats. The device supports standard security protocols such as SRTP and TLS, making it compliant with contemporary security standards.

Moreover, the GXP-280 offers a variety of codec options, including G.722, G.711, and G.729, allowing it to adapt to various network conditions and requirements. Its compatibility with a wide range of SIP platforms adds to its appeal, making deployment in existing infrastructures seamless.

To summarize, the Grandstream Networks GXP-280 is a versatile, reliable, and feature-rich IP phone that stands out for its clarity, flexibility, and security, making it an excellent choice for businesses looking to enhance their communication systems. With its impressive array of functionalities and support for modern technologies, the GXP-280 is a representation of Grandstream's commitment to providing high-quality communication solutions.