VoIP vendors pass SIP test
Devices based on Session Initiation Protocol offer basic interoperability, but challenges remain for advanced features.
VoIP vendors pass SIP test
Devices based on Session Initiation Protocol offer basic interoperability, but challenges remain for advanced features.
Open-door policy
Previous SIP interoperability forums have been closed-door sessions in which vendors have tested conformance of their products with SIP and ironed out various issues relative to interpretation of the SIP specification.
The enterprise VoIP update
Survey says deployment is being slowed by too many standards, not enough interoperability and concerns over quality of service.
Conduct of survey
This article represents an exclusive first look at the results of the third annual survey of the voice-over-IP industry.
The changing VoIP landscape
Statistics on vendors supporting their own protocol (from print).
VoIP pros and cons
A chart from print showing the main factors driving and inhibiting VoIP.
SIP interoperability (chart)
We tested
interoperability between vendor products and two “reference” products, check out the results.
Vendor free for all
See how vendors' products interoperated with others' (a PDF file).
RELATED LINKS
Yocom is senior editor, Percy is technology analyst and Bilger is senior lab-test engineer at Miercom, an independent testing lab located in Princeton Junction, N.J. They can be reached at byocom@mier.com; kpercy@mier.com and ubilger@mier.com.
Technologies to work in tandem to aid IP telephony
Enum, an emerging technology that integrates the public switched telephone network and the Internet's domain name system, is getting a boost from another new Internet capability called SIP.
Network World, 05/07/01.
Feature: Voice over IP is a (fast) moving target
The voice-over-IP marketplace is booming, but interoperability woes may hinder progress.
Network World, 01/29/01.
Vendors SIP new promise of telephony
Several Voice over IP vendors at the Voice on the Net (VON) show in Atlanta this week are debuting products based on a new Internet standard that is expected to spur the use of telephony applications.
InfoWorld, 09/13/00.
