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Posted on Thursday, October 13, 2005 - 02:54 pm:   

1. How well NowSMS is supported on the CDMA environment, including delivering sms content.

2. I was able to receive 192 characters in a single message from my Kyocera Phantom but was unable to send the message to the handset upon debugging it the gateway segmented the message into 2 like we have it on GSM environment.

Kindly Reply.
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 5121
Registered: 10-2002
Posted on Thursday, October 13, 2005 - 06:59 pm:   

We are not experts on CDMA specific issues, so to answer "How well is NowSMS suppoorted in the CDMA environment" ... I would say that it is limited.

The primary challenge in CDMA environments is a general inability to send binary messages which are required for some advanced message formats.

We can support WAP Push and MMS in CDMA environments when the SMSC connection is SMPP based and the SMSC supports WDP Adaptation. (We do have several CDMA based mobile operators who are using us as an MMSC.)

But when it comes to CDMA modems, there doesn't seem to be any standard for sending/receiving binary messages. So we can pretty much only send text.

And you are correct, if a message is longer than 160 characters, we will try to segment it. (I believe the size limit in CDMA environments is variable? At least that is what I have been told. And I have also been told that there is no standard for sending a text message longer than the CDMA network's size limit ... unlike GSM.)

We're always willing to learn more, and make changes.

How are you interfacing NowSMS to the CDMA network?

If you are using SMPP, then under the "Advanced Settings", you might want to try enabling "Use WDP Adpation for ...". When this setting is present, as long as "Use TLV parameters for port numbers and segmentation" is NOT checked, then we won't try segmenting any messages over the SMPP connection (including text messages). (Internally, you'll notice that NowSMS does segment, but it re-assembles for transmission in this case.)

Alternatively, try with "Use TLV parameters for port numbers and segmentation" checked, and make sure that "Encode long text messages with 7-bit packed encoding" is NOT checked.

Posted on Friday, October 14, 2005 - 09:14 pm:   

Yes you are right the primary challenge that I am facing is delivering binary messages like EMS, Flash Messages and UNICODED messages probably the DCS is not acceptible in CDMA environment. Any help in this regard is helpful.

I am connected via SMPP 3.3 interface

Will check the long messages with TLV option and post it on the board.

would definetely like to share my experience with you to improve the product's compatibility for CDMA environment.
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 5160
Registered: 10-2002
Posted on Wednesday, October 19, 2005 - 03:28 pm:   

I'm pretty sure you need SMPP v3.4 to do any of this.

My limited experience with CDMA SMS is primarily with WAP Push and MMS notifications.

EMS should be possible, but you need to check "Use WEMT teleservice (CDMA) for EMS Messages", and you need to set the "Service Type". It is usually "WEMT", but may vary. When NowSMS has an EMS format message, it then automatically sets this service type for the message. The SMSC needs to look for this service type, and set the WEMT teleservice id for CDMA in the message that gets sent over the air.

I don't think there is an equivalent to "flash" in the CDMA world, but I could be wrong.

I also don't know about Unicode in CDMA environmetns. However, if the DCS is set to Unicode, the flags get set in the SMPP submission to indicate that the message is in Unicode format. And the SMSC would then have to know how to send this in a CDMA environment.

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