No Jitter

SIP Trunking and the Increasing Importance of the Enterprise Session Border Controller

A new twist is survivability features that ensure connectivity during the period of cutover from TDM to SIP trunks. As demonstrated by the overflowing audiences at this last Spring VoiceCon, SIP ...
No Jitter

9 Reasons to Have Your Own SBC

The big reasons why an on-premises session border controller is necessary. SIP has been around since the late 1990s, but confusion still exists about what exactly it is and what it can do. Most ...
Ars Technica

Cisco ISR -> ASR as SIP SBC? (Where oh where is my COR?)

We're looking at the feasibility of moving from a Cisco ISR 3800 series router to an ASR 1000 series router to handle SIP between our telco and our phone system. (Our phone system is non-Cisco, and we ...
Network World

ADTRAN adds SBC features to portfolio

Two news items today: ADTRAN recently added Session Border Control (SBC) features in its portfolio of enterprise gateways and routers, and Digium has introduced two new VoIP gateways. ADTRAN’s SBC ...
Network World

How we tested SBCs

How we performed the Clear Choice Tests of session border controllers. The session border controller (SBC) test bed consisted of simulated enterprise and carrier sites, connected by a T-1 IP WAN link.