2 creating a dialing rule for pstn, Figure 16 outbound calls via pstn, Creating a dialing rule for pstn – ZyXEL Communications IP PBX X6004 User Manual
2 creating a dialing rule for pstn, Figure 16 outbound calls via pstn, Creating a dialing rule for pstn | ZyXEL Communications IP PBX X6004 User Manual | Page 67 / 592