Labels:text | diagram | font | screenshot | number | map | line OCR: FLANKING THE CLOUD Central site Remote site Definity ECS Definity Extender. PSTN/ RS:232: Analog or, ISDN ISON-BRE Aniblog'or (first 8 chaine)) SON-BRI ISON-BRI [second B chierinel): RS-232 -Router Figure 1: A typical Definity Extender configuration might look like this.