Correction of a number of errors in call processing and tariff plan settings

[ashammi258]

Content
Bug fixes
Fixed a number of errors that occurred when changing the tariff plan and when some call forwarding schemes were in operation.

Bug fixes
Fixed a bug where all limits were reset to the lowest value for clients when changing a tariff plan, publishing a new version of a tariff plan, or connecting a new option. Now the values ​​set by clients are saved.
Added a check of the category and prefixes of egypt phone numbers numbers when changing the tariff plan: now it will not be possible to switch to a tariff plan with a gold category number if this category is not allowed in the new tariff plan.
Fixed a bug in attempting to dial an unregistered SIP in the forwarding operation.
Fixed a bug with rounding up call duration for values ​​that are multiples of 60.
Fixed a bug with substituting 8800 as the Caller ID when ordering to listen to a message from a call forwarding operation or a message to a subscriber waiting in line. Now we substitute a virtual number or system Caller ID, the same for all clients: '78122452889' for St. Petersburg and '74952561984' for Moscow, if there are no other prefixes.