Originally Posted by rowanparker
What does that do? I thought that was an LTE thing?
IMS: Ip Multimedia Core Network System
it exists as a framework for delivering internet protocol multimedia services, uses IETF protocols, like SIP. it's been around since the need of delivering data through gprs, and has been updated/used until now.
a sms can be sent in two ways: binary (encoded over a IMS network, by a PDU - protocol data unit) and text.
the PDU contains various info, like SMSC adress, timestamp, sender number. if the user terminal doesnt send SMSC number/adress encoded (in hexadecimal) in the PDU, the sms doesnt get through to the PSTN, thus not reaching destination.
maybe the nexus doesnt do these operations well because it's missing STK (Sim Toolkit)?
XDA forum rules here
bug report? logcat and /proc/kmsg, or it "never happened".
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aosp-maguro READFIRST here (credit: efrant)
aosp-gnex READSECOND here (credit: efrant)