Revision as of 23:47, 2 March 2025 (view source) Michael (talk \| contribs) (→‎Incoming messages) ← Older edit		Revision as of 23:55, 2 March 2025 (view source) Michael (talk \| contribs) (→‎Outgoing messages) Newer edit →
== Outgoing messages == End user SIP equipment may support ETSI ES 201 912 over RTP, if so then VoIP supplier could implement that by rôle switching to SM-SC to deliver messages to it, and divert outgoing calls to well known SM-SC numbers to the provider SM-SC. ~~If the station supports SMS on PSTN, it may support the same interface over IP codecs, then "calls" to BT Text outgoing shortcodes are very likely attempts to send an SMS this way.~~ ~~# As with "annex A.1" If caller-id is not witheld, answer the call, in the SM-SC role~~ ~~# Log the outgoing SMS if required and transmit onwards~~ = Experimenting =

Talk:SMS (view source)