165 RECEIVED the message has been received (but not tagged as read)
166 READ the message has been tagged as read
167 COMPOSING the message has been created but not yet sent
168 SENDING_TO_SERVER the message is in process of being sent to server
169 SENT_TO_SERVER the message has been sent to server
170 DELIVERED server has confirmed that the message is sent out to recepient
171 SOME_TARGETS_FAILED server reports failure to deliver the message to one of the recepients within 24h
172 FAILED the message has failed, possible reason may be found in FAILUREREASON property
173 UNKNOWN message status is unknown
174
175 FAILUREREASON
176 MISC_ERROR indicates failure to supply a meaningful error message
177 SERVER_CONNECT_FAILED unable to connect to SMS server
178 NO_SMS_CAPABILITY recepient is unable to receive SMS messages
179 INSUFFICIENT_FUNDS insufficient Skype Credit to send an SMS message
180 INVALID_CONFIRMATION_CODE set when an erroneous code was submitted in a CONFIRMATION_CODE_SUBMIT message
181 USER_BLOCKED user is blocked from the server
182 IP_BLOCKED user IP is blocked from the server
183 NODE_BLOCKED user p2p network node has been blocked from the server
184 UNKNOWN default failure code
185 NO_SENDERID_CAPABILITY Set when a CONFIRMATION_CODE_REQUEST SMS message is sent with a mobile phone number containing country code of either USA, Taiwan or China. Setting reply-to number from Skype SMS’s to your mobile number is not supported in these countries. Added in Skype version 3.5 (protocol 8).