The telephone system on board Naval Support Facility Indian Head is transitioning from a Private Branch Exchange (PBX) to a Central Office Exchange (Centrex). One effect of the new phone service will be a change in how on-base numbers (including emergency services) are dialed, both during the transition and afterward. Once this conversion is completed, base employees will have to dial a 7-digit phone number to reach other extensions on base.
During the telephone system transition period (from now until the end of August), you will have to dial 9-301-744-xxxx (11-digits) to reach other on-base numbers. In particular, the number to report emergencies will be 9-301-744-4333. You must dial all digits to reach emergency services as some lines are on the old system but some have been converted to the new system. Dialing this 11-digit number will ensure you reach necessary assistance.
After the Centrex telecommunication conversion is completed (currently 28 Aug), emergency services can be reached by dialing 744-4333 (7-digit). An all hands notification will be sent when the transition is completed.