This has happened with two of my contacts now, both of them and I have the latest software on our iPhones (their's are iPhone 4S' and mine is an iPhone 4):
text messages were working as normal, blue windows representing iMessages then messages started going through as green 'sent as text message' but were not being received on the other end Only when I replied to the messages trail between us.
I can get the other people to receive my messages if i start each text to them as a new message and select their name from the contacts list instead of replying to their message. Their replies come through in a different message trail so I have one lot of messages under that contact name which are all received and one lot saved separately which are all sent. I noticed with the second contact this happened immediately after he got a new iPhone 4s.
Any clues would be very appreciated. it is inconvenient and gives no warning or indication that it is happening.
text messages were working as normal, blue windows representing iMessages then messages started going through as green 'sent as text message' but were not being received on the other end Only when I replied to the messages trail between us.
I can get the other people to receive my messages if i start each text to them as a new message and select their name from the contacts list instead of replying to their message. Their replies come through in a different message trail so I have one lot of messages under that contact name which are all received and one lot saved separately which are all sent. I noticed with the second contact this happened immediately after he got a new iPhone 4s.
Any clues would be very appreciated. it is inconvenient and gives no warning or indication that it is happening.