Resolution amending Resolution No. 632 of 2017, authorizing the Mayor and Director of Public Safety to enter on behalf of the City of Pittsburgh into an amended agreement or agreements with Purvis Systems for installation of a new fire station alerting system and related support services. Said agreement or agreements shall be in a form approved by the City Solicitor and shall be at a total cost not to exceed TWO MILLION SEVEN HUNDRED SIXTY-THREE THOUSAND EIGHT HUNDRED TWENTY SEVEN DOLLARS and FIFTY-ONE CENTS ($2,763,827.51).