Chapter 5: Phonebook Configuration

Clicking on the Advanced button brings up the Alternate Routing secondary screen. This feature provides an alternate path for calls if the primary IP network cannot or does not respond within the timeframe of the Round Trip Delay. Often in cases of failure, call traffic is temporarily diverted into the PSTN. However, this feature could also be used to divert traffic to a redundant (backup) unit in case one SIP end point fails. The user must specify the IP address of the alternate route for each destination pattern entry in the Outbound Phonebook.

 

 

Advanced button

 

 

 

 

 

Alternate Routing Field Definitions

Field Name

Values

Description

Alternate IP

n.n.n.n

Alternate destination for call traffic in case of excessive network delay.

Address

 

 

 

 

 

Round Trip

Default is

The Round Trip Delay is the criterion for judging when a data pathway is

Delay

300

considered blocked. When the delay exceeds the threshold specified here, the

 

milliseconds

data stream will be diverted to the alternate destination specified as the

 

 

Alternate IP Address.

The Alternate Routing function facilitates PSTN Failover protection, that is, it allows you to re-route VOIP calls automatically if the VOIP system fails. The MultiVOIP GSM can be programmed to respond to excessive delays in the transmission of voice packets, which the MultiVOIP GSM interprets as a failure of the IP network. Upon detecting an excessive delay in transmission of voice packets (overly high “latency” in the network) the MultiVOIP GSM diverts the call to another of its channels, allowing the call to go back out to the wireless network to reach the remote end using a land line.

Multi-Tech Systems, Inc.

MVPGSM

59

Page 59
Image 59
Multi-Tech Systems MVPGSM-2 manual Alternate Routing Field Definitions, Advanced button

MVPGSM-2 specifications

The Multi-Tech Systems MVPGSM-2 is a robust and versatile device designed for various telecommunication applications, particularly those involving GSM cellular technology. This multi-function modem is ideally suited for machine-to-machine (M2M) communication, enabling seamless data transfer for remote monitoring, control, and automation.

One of the MVPGSM-2's key features is its dual-band GSM support, which allows for enhanced connectivity and coverage. The device operates on both 850 MHz and 1900 MHz frequency bands, ensuring compatibility with a wide range of GSM networks across different geographical areas. This flexibility makes it an excellent choice for applications that require reliable wireless communication, such as in remote sensors, telemetry, and industrial automation.

The MVPGSM-2 incorporates advanced technologies like GPRS (General Packet Radio Service) and SMS (Short Message Service), enabling efficient and real-time communication capabilities. GPRS facilitates data transmission at speeds up to 114 kbps, making it suitable for sending and receiving large volumes of data quickly. The SMS functionality allows for reliable and immediate messaging, making it easier to receive alerts and notifications in real time.

One of the standout characteristics of the MVPGSM-2 is its rugged design. Built to withstand harsh environmental conditions, it features durable casing that protects it from dust and moisture. This ruggedness ensures that the device performs reliably in various industries, including agriculture, transportation, and energy, where exposure to challenging conditions is common.

Additionally, the MVPGSM-2 supports multiple I/O ports, including digital inputs and outputs, which provide flexibility in integration with various sensors and control systems. This versatility allows users to customize the device to meet specific application needs.

The device also comes with comprehensive software and development kits that streamline integration into existing systems and applications. Multi-Tech Systems offers extensive technical support and documentation, ensuring that users can easily navigate the setup process.

In summary, the Multi-Tech MVPGSM-2 is a powerful GSM modem designed for M2M communication, featuring dual-band support, GPRS and SMS capabilities, rugged design, and flexible I/O options. Its robust performance makes it a valuable tool for various industrial applications, ensuring reliable data communication and management in the field.