Elephants can also drink up to 50 gallons of water a day about as much as a standard bathtub holds. Elephants are a keystone species that influence the composition of their environment while often benefiting other species.
Log Sequence Number. Every record in SQL Server transaction log has its own log sequence number or LSN. Log sequence numbers are ordered in such a way that changes related to the record with greater LSN occurred after the changes related to records with smaller LSN. Each backup that is set in SQL Server has FirstLSN and LastLSN values.
It sounds like a customisations has been applied to your system to enforce a particular format of the phone number. In CRM2013 there is a new phone number format, but this only allows you to make calls by clicking on the number and launching skype/lync. For this to work it requires the phone number to be in the format +<country code> <area code> <number>. I suggest you contact your system administrator to find if any customisations have been made. It sounds like a customisations has been applied to your system to enforce a particular format of the phone number.