Tag Archive for: PRI

Disaster recovery cartoon

CISCO Configuration Professional Express

, ,
When you lease expect it, expect it! We were deploying a new CISCO Voice Gateway, a CISCO 2921 with a PRI and mistakenly pointed a browser at the LAN Interface while searching for the CUCM URL!   Sometimes accidents result in new information. …
Disaster recovery cartoon

SIP as a Disaster Recovery Strategy? EtherSpeak answers the call!

, , ,
As a standard deployment practice, we at DrVoIP implement SIP trunks as a “fail over” on every system we install.   As reliable as your PRI circuit has been, they do fail from time to time!  In fact, we recently lost 27 PRI’s at a major…
Asterisk PBX integration illustration

ShoreTel SIP trunks using Asterisk?

, , ,
Since we published the blog on the ShoreTel SIP implementation using Ingate, we have been deluged with requests for more detail.   Specifically, people want to know if there is a more economical  solution for bringing  SIP dial tone into…
Asterisk PBX integration illustration

Trouble Shooting ShoreTel SGT1 Caller ID

, ,
Caller ID is an interesting area and we see a variety of client request regarding this functionality. On analog lines, there is not much room for configuration. Generally this information is transmitted as FSK (i.e. modem tones) in either the…
Asterisk PBX integration illustration

ShoreTel SIP Trunk Configuration Parameters for Level 3

, ,
Generally, we do not fill out forms given to us by Carriers.   Most Carrier forms use nomenclature that is "Marketing Speak" and not technically driven.   It seems we have 100 different ways to refer to a TDM with PRI signaling and only one…

Showing 5 of 5 posts. End of results.

DrVoIP logo

Building cloud communications and contact center solutions since 2008.

DrVoIP on YouTube
Peter Buswell on LinkedIn

Services

Amazon Connect
AI Solutions
Cloud Services
Case Studies

Company

About Peter
Resources
Blog
Contact

Talk to us

844-4DrVoIP
grace@drvoip.com

© 2026 DrVoIP. All rights reserved.