Hot "denim" June in MTS

End of the week puzzled appearance relatively frequent failures in the Moscow MTS network. Recurrent network busy, break the connection just "out of the blue," a distinct echo during a talk within - it is a personal experience. Of the complaints from other users - a significant delay in the delivery of SMS-messages, and even such exotica as a response of "number is not registered." In principle, nothing wrong, but usually such defects in the work of the MTS network is not recorded and callers of this operator always enjoyed an excellent quality of communication. In fairness it should be noted that not all the "lucky" to run into one or the other fails, many (quite possibly the majority) of users is no problem with mobile phones was not. On weekends, there was no gripes, everything worked as usual - that is, quality and stable. Would not be worth even write about it, if not a curious assumption.