SMPP TLV Optional Parameters
The SMPP protocol defines support for optional parameters, known as TLV parameters. Some TLV parameters are defined in the core specification, and NowSMS may use them depending on configuration settings. These TLV parameters include message_payload, source_port, dest_port, sar_msg_ref_num, sar_total_segments, sar_segment_seqnum, payload_type, message_state and receipted_message_id. (There are...
Read MoreSMS Hubbing Considerations
NowSMS is frequently used to provide SMS message routing connectivity between multiple SMSCs using the SMPP protocol. The purpose of this document is to clarify issues that are frequently encountered in SMS hubbing configurations. In SMS hubbing configurations, NowSMS is connected to one or more service providers using the SMPP protocol. Service providers route selected SMS messages to NowSMS...
Read MoreSMPP Server Adds @ Characters to Text Message
It has come to our attention that a bug exists in the NowSMS SMPP Server implementation for versions dated between 2011.07.xx and 2012.01.xx inclusive. This bug only effects configurations where NowSMS is being used as an SMPP server. In other words, an SMPP client is being used to submit messages to NowSMS, and messages are being segmented by the SMPP client before they are submitted to...
Read MoreSMPP Asynchronous Mode
One of the biggest limitations to SMPP performance is protocol implementations that do not support SMPP asynchronous mode, or to state it more correctly, do not take advantage of the speed boost that is possible with SMPP asynchrnous mode. SMPP Synchronous Mode = One Message at a Time In SMPP Synchrnous mode, each side of the SMPP client has only one outstanding transaction active at a time. ...
Read MoreUsing NowSMS as an SMPP Server for Another Application
One of the more unusual features of NowSMS is its ability to operate as an SMPP server. NowSMS can relay messages submitted to its SMPP server to any outbound SMSC connection, which could be one or more GSM modems and/or SMPP, UCP/EMI, CIMD2 or HTTP SMSC connections. There are a few different reasons why this feature would be used. The simplest scenario is when an end user wants to use a...
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