Pep infotech offers 3-extension epabx [sx-103] with call transfer, three party conferencing, extension ad co line status display and many other useful features. It has distinctive std/local ring and sx-103 is programmable. In plan [1+1] there are only two extensions while sx-103 offers 3 extensions. Sx-103 also provides features like call forwarding, std and 95 locking and music on hold which gives it a clear advantage over plan [1+1]. In addition to the above sx-103 also provides facility to connect parallel phones on any/all extensions and thus making it possible to connect up to 6 extensions. It has a ring-to-self feature to enable extensions connected in parallel to talk to each other.