ISDN PRI

Improve communications and enhance the capability of your PBX

Traditional ISDN provides clear reliable connections with all the convenient calling features you expect. ISDN PRI delivers up to 23 voice channels to use as you choose for outbound and inbound local, long distance and toll-free voice service.

Features and Advantages

Castlewire's PRI's Two-way DID/DOD service enables both inbound (DID) and outbound (DOD) calling.

• Allocate up to 23 channels per PRI for clear, reliable voice services
• Connects to your PBX's PRI card no additional equipment required
• Superb digital call clarity
• Caller ID with name, call forwarding, hunting and more
• Direct inward dialing (DID) routes calls to the right resource
• Direct outward dialing (DOD)
• Trunk groups can overflow to other PRI trunks

Learn more, contact us today!