How to change SMPP PDU

[Michael Tung]

I am having trouble getting the DLR for SMPP v3.4.   According to the techies at the SMSC, I need to : "explicitly turn on the "registered_delivery" in SMPP PDU during submission" Does anyone know how to do this, or what I am doing wrong? The only DLR that comes back is of bitmask 12 (8+4?), which doesn't really makes sense to me. Seems like it is a standard response that the message is received and queued at the SMSC. But what I really need is DLR of bitmask 1 or 2, which doesn't come back at all even after the SM is received by the mobile.   My config for the SMPP is : --------------------------------------------- group = smsc smsc = smpp smsc-id = test allowed-prefix = ... host = ... port = ... receive-port = ... smsc-username = ... smsc-password = ... system-type = "VMA" address-range = "" enquire-link-interval = 30 max-pending-submits = 10 reconnect-delay = 10 interface-version = 34 ---------------------------------------------   ps - Would it help if I play with the NPI and TON?     --michael   --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.380 / Virus Database: 213 - Release Date: 7/24/2002