Chapter 5. Setting up a SMS Gateway

Variable

Value

Description

suffixstring

 

 

Load a list of accepted senders

 

 

of SMS messages. If a sender of

 

 

an SMS message is not in this

 

 

list, any message received from

 

 

the SMSC is rejected, unless a

 

 

black-listservice is defined.

 

 

See notes of phone number

 

 

format from numhash.h header

white-list

URL

file.

 

 

As white-list, but SMS messages

 

 

from these numbers are

black-list

URL

automatically discarded

Notes:

a.Even if this service is denied, kannel still searches for other service which accepts the message, or default service.

b.Like in accepted-smsc, kannel still searches for other service which accepts the message. This way there could be several services with the same keyword and different results.

Table 5-7. Parameters (Escape Codes)

 

%k

the keyword in the SMS request (i.e., the first word

 

in the SMS message)

%s

next word from the SMS message, starting with

 

the second one (i.e., the first word, the keyword, is

 

not included); problematic characters for URLs are

 

encoded (e.g., ’+’ becomes ’%2B’)

%S

same as %s, but ’*’ is converted to ’~’ (useful

 

when user enters a URL) and URL encoding isn’t

 

done (all others do URL encode)

%r

words not yet used by %s; e.g., if the message is

 

"FOO BAR FOOBAR BAZ", and the has been one

 

%s, %r will mean "FOOBAR BAZ"

%a

all words of the SMS message, including the first

 

one, with spaces squeezed to one

%b

the original SMS message, in a binary form

%t

the time the message was sent, formatted as

 

"YYYY-MM-DD HH:MM", e.g., "1999-09-21

 

14:18"

%p

the phone number of the sender of the SMS

 

message

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Nokia WAP and SMS gateway Black-list service is defined, See notes of phone number, Format from numhash.h header, file, 1418

WAP and SMS gateway specifications

Nokia has long been a pivotal player in the telecommunications industry, and its contributions to mobile communication technology are numerous. Among these contributions, the Nokia WAP and SMS Gateway stand out as essential elements in enabling mobile internet access and messaging services in the early days of wireless communication.

The Nokia WAP (Wireless Application Protocol) gateway was introduced to facilitate mobile access to the internet and to allow users to interact with web services through their mobile devices. Built on a client-server architecture, the WAP gateway acted as a bridge between the mobile network and the internet, translating traditional web content into a format that mobile devices could effectively render. This conversion was crucial, given the limitations of early mobile devices regarding screen size, processing power, and network bandwidth.

One of the main features of the Nokia WAP gateway was its ability to provide users with real-time access to information such as weather updates, news, and stock prices. By using a lightweight markup language called WML (Wireless Markup Language), the gateway allowed developers to create mobile-friendly websites that could be accessed via WAP-enabled devices. This marked a significant step toward the mobile internet we know today, creating a new realm of possibilities for developers and users alike.

Another critical aspect of Nokia's offering was the SMS (Short Message Service) gateway. The SMS gateway provided a robust platform for sending and receiving text messages across various mobile networks. It enabled seamless communication between devices, regardless of the underlying technology. This feature made SMS a popular choice for both personal communication and business applications, such as marketing campaigns and customer service notifications.

The Nokia SMS gateway utilized established protocols, such as SMPP (Short Message Peer-to-Peer), to ensure reliable message delivery and efficient interaction between SMS applications and mobile networks. Its characteristics included scalability, allowing service providers to handle large volumes of messages, and flexibility to integrate with existing applications and systems.

In summary, the Nokia WAP and SMS gateway played a vital role in the evolution of mobile communication. With features that enabled mobile internet access and streamlined messaging capabilities, these technologies laid the groundwork for the mobile-centric world we live in today. Their legacy continues to influence mobile application development and the broader telecommunications landscape. As the industry progresses, the innovations introduced by Nokia serve as a reminder of the foundational technologies that paved the way for modern mobile experiences.