| Transport Level Interworking | Service Level Interworking |
|---|---|
| When the original SMS content is brought to the IMS side, the IP-SM-GW chooses to apply this method to forward a MAP message to the IMS domain. | When receiving a Short Message from a legacy domain, the IP-SM-GW translates the Short Message payload to a plain/text payload of an Instant Message. |
| This method can be applied only when the recipient UE is capable of SMS support (e.g. Smartphone). | This method is applied when the recipient UE does not support native SMS (e.g. VoIP based IM client). |
| In this case the binary payload of the received MAP message is just uploaded into a SIP message. This message will now use the SIP MESSAGE method and his payload will be signaled as ’application/vnd.3gpp.sms’ |
IP-SM-Gateway | Transport & Service level Interworking
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Thanks for this great post, i find it very interesting and very well thought out and put together. I look forward to reading your work in the future.
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