The dominant signalling protocol both in future wireless and wired networks will be the Session Initiation Protocol (SIP). as pointed out in the 3G IP-based mobile networks specifications. entailing a fully Internet integrated network. The use of SIP in the IP Multimedia Subsytem (IMS) of Release 5 involves the development of servers capable to handle a large number of call requests. https://fitnessgravesyardes.shop/product-category/back-console-housing/