In the world of telephony there are quite a few different standards, from classic TDM, PSTN, and the IP (most often standard H323 and SIP). We decided to use the SIP standard, since it's the most common.
Dialogic equipment is our choice for a high-quality conversion between standards.
Supports up to 28 E1 / T1 links with SS7 signaling.
Supports up to 4 E1 / T1 links.