Support Blog

NowWAP and HTTP Header Enrichment (HHE)

The HTTP Header Enrichment (HHE) capability provides solutions for a content provider to identify a subscriber. Basic HHE allows the subscriber to be identified by their MSISDN. Aliased HHE allows the subscriber to be identified without divulging the subscriber’s MSISDN. A standard feature of the NowWAP Proxy is to provide Basic HTTP Header Enrichment to facilitate operator billing for...

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Send SMS from PHP Script (Updated)

Quite a few people use the PHP script that Bryce provided 7-1/2 years ago for sending an SMS message through NowSMS from PHP. Over the years, we’ve added a few comments to clarify how the script is to be used.  However, one of the most limiting things about the script is that it doesn’t support any of the additional SMS URL parameters supported by NowSMS. Among other uses, these...

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iPhone MMS Message Send Failure on GPRS and EDGE

We’ve recently investigated a problem reported by a NowSMS MMSC customer where iPhone 4 users were reporting a high volume of failed MMS message sending. Our investigation suggests that this problem is related to a software issue in the iPhone MMS client, when operating outside of 3G coverage.  There is no problem in the operation of either the NowWAP Gateway or the NowSMS MMSC. (Note:...

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Shift Tables – National Language SMS in 160 characters without Unicode

The fact that messages that contain characters outside of the GSM character set require Unicode encoding and are limited to 70 characters per message instead of the expected 160 character limit, is a frustrating limitation for many languages. Messages longer than 70 characters can, of course, be sent, but they are sent as multipart (segmented) messages, and reassembled by the receiving client....

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WAP Gateway Blocks BlackBerry App World

WAP Gateway Blocks BlackBerry App World

It has come to our attention that the default configuration setting for the NowWAP WAP Gateway blocks users from connecting to BlackBerry App World. The reason for this seems to be some unusual communication patterns between the handset and the App World server. The handset attempts to created a tunneled connection to the HTTP port (80) of the BlackBerry App World server. Symptoms of the problem...

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SMPP Information and Resources

SMPP (Short Message Peer-to-Peer) Protocol is an industry standard protocol that is used for exchanging SMS messages between peer entities.  In SMPP terminology, two types of entities are defined, a Short Message Service Centre (SMSC), and an External Short Messaging Entity (ESME). In simplistic terms, an SMSC manages SMS messages for a mobile operator network, delivering SMS messages to mobile...

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SMPP 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. ...

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NowSMS/MMS API Information

NowSMS/MMS API Information

The primary API for sending and receiving SMS and MMS messages with NowSMS is HTTP-based. Because the API is HTTP based, applications that wish to send or receive messages via NowSMS do not have to run on the same physical server, they can interface with NowSMS over a network. This page contains links to additional information that describes the raw HTTP interface, as well as links to example...

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SMPP Receipt Message ID Tracking Over Multiple Connections

One of the standard capabilities of NowSMS is the automatic mapping of receipt message IDs when routing messages to an upstream SMSC connection. The reasoning/logic is simple. When NowSMS accepts a message from a client, NowSMS needs to assign an ID to the message. When the message gets routed to an upstream SMSC, that SMSC will assign a new message ID. NowSMS saves the message ID assigned by...

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Operator MMSC Accounting – Detecting Roaming Subscribers

One important consideration when charging for MMS messages is whether or not the user is roaming. The NowSMS MMSC can provide this information to the MMS accounting callbacks, however the requisite information is not included in the MMS accounting callbacks by default. Before the MMSC can pass this information to the accounting callbacks, the MMSC must receive this additional information from...

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NowSMS and SSL Certificates – 2048 Bit Key

In the last 6 months, many SSL Certificate Authorities (CAs) have made a switch to requiring web servers to use 2048-bit private keys. It is believed that increased computing power will make the commonly used 1024-bit keys possible to break by 2011. There is a side effect in switching to the larger keys that some old web browsers don’t support > 1024 bit keys. I can’t find a good...

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Mobile Number Portability (MNP) and the NowSMS MMSC

When the NowSMS MMSC is used in environments with mobile number portability (MNP), the MMSC may need to query a database to determine whether a recipient is local to this MMSC or if it belongs to another operator. The interface to support this is defined in the following article: Mobile Number Portability (MNP) and the NowSMS MMSC However, there is an additional issue that is not discussed in...

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XML Status Query for SMSC Connection Status and Statistics

We posted details about an XML-based NowSMS status query in an earlier posting: http://www.nowsms.com/xml-status-query-for-smsc-connection-status-and-statistics This query reports information similar to what is reported on the “Status” page of the NowSMS configuration dialog. The query results include information about SMSC connection status, the number of messages processed via the...

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NowSMS Group Text Messaging

The NowSMS Group Text feature is designed to facilitate group communications over SMS. At it’s core, it’s about sending a single text message, and having that text message automatically forwarded to a group of people. NowSMS Group Text is a free add-on for the Now SMS & MMS Gateway and NowSMS Lite. NowSMS Group Text will only work with NowSMS or NowSMS Lite versions 2008.06.03...

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Bug Sending Long Binary SMS Messages to Java Apps on Motorola Devices

One of the more interesting technical support incidents of the past week comes from Mohit Kumar Sethi at 3i Infotech Consumer Services Ltd. Mohit is using NowSMS Lite to send binary SMS messages to a Java application that his company is developing. He noticed that when sending SMS binary messages longer than 140 bytes, the messages were received correctly by Nokia and SonyEricsson devices,...

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SMS and MMS with the Novatel Merlin XU870 ExpressCard Modem

If you are using NowSMS in a laptop with an available ExpressCard slot, the Novatel Wireless Merlin XU870 ExpressCard Modem is a good modem to use with NowSMS to send and receive SMS and MMS messages. This modem supports HSDPA up to 7.2 Mbps (although locating the appropriate firmware driver update seems to be a challenge, without it, it is limited to 3.6 Mbps). That is good for receiving...

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Using NowSMS as a WAP Push Proxy Gateway (PPG)

NowSMS supports the Open Mobile Alliance (OMA) Push Access Protocol (PAP), which allows other applications to use NowSMS as a WAP Push Proxy Gateway (PPG). Even though NowSMS has its own MMSC capability, we do have customers who are using NowSMS as a push proxy gateway for another vendor’s MMSC. In addition to providing PPG support for MMS, NowSMS can be used as a push proxy gateway for...

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Sending SMS from Microsoft Excel

A recent posting on the NowSMS Discussion Board has some interesting information on sending an SMS a link within an Excel spreadsheet. Read the full post here: http://www.nowsms.com/discus/messages/1/41882.html The gist of the posting is that you cannot use the Excel HYPERLINK command to do this. It would be logical to build a NowSMS URL to send a message, but the HYPERLINK command connects to...

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SMS and MMS with the Alcatel One Touch X200 or X060 USB Modem

The Alcatel One Touch X200 and X060 USB Modems are good (but not great) modems to use with NowSMS to send and receive SMS and MMS messages. For alternative modems, please see our other reviews: http://www.nowsms.com/tag/gsm-modem For general information on configuring NowSMS to send and receive SMS and MMS messages with a GSM modem, such as the Alcatel One Touch X200 or X060, please see the...

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T-Mobile (USA) 3G WebConnect USB Modem – Not for MMS

Update – February 1, 2011: Problems sending MMS messages with a 3G modem on T-Mobile USA can be resolved by using alternate MMSC settings: GPRS APN: epc.tmobile.com WAP Gateway Address: http://216.155.165.50:8080 MMS Server URL: http://mms.msg.eng.t-mobile.com/mms/wapenc End-users of T-Mobile USA have been asking us for feedback on modems that can work on T-Mobile’s 1700Mhz...

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