NEC SVP SERVER - INSTALLATION SETUP AND Installation And Setup Manual

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NEC SVP SERVER - INSTALLATION SETUP AND Installation And Setup Manual Manual pdf 44 page image

5-2 Swapping/Adding/Deleting SVP ServersSVP Server Installation, Setup, & Maintenance Manual - Revision 1For Wireless Telephones active in calls, two possible scenarios can occur.• If the SVP Server that was removed was providing the “gateway”function for the Wireless Telephone, then the call is lost and theWireless Telephone is forced to checkin again.• If the SVP Server that was removed was providing the “timing”function for the call, the call will switch to the SVP Server thatshould now provide the “timing” function.Changing the Master SVP ServerIn the event the master SVP Server loses communication with thenetwork, the Wireless Telephone system will fail. All SVP Servers willlock and all calls will be lost and no calls will be able to be placed.Therefore, if the master SVP Server needs to be replaced, be sure thesystem can be brought down with minimal call interruption. Be sure toreset all SVP Servers after the master has been replaced. If the IPaddress of the master is changed, it must be changed in all SVPServers.UNIVERGE WL System Telephony GatewayIn a Telephony Gateway environment, the addition of a SVP Server isdetected as soon as the new SVP Server is running. The new SVPServer immediately starts providing the “timing” function for theappropriate Wireless Telephones. The user should not detect anychange. The removal of a SVP Server is detected within one minute.During this time, any Wireless Telephone that was using the SVP Serverthat was removed will be affected. If the Wireless Telephone was notin a call, the Wireless Telephone may lose contact with its gateway,resulting in a checkout/checkin sequence. If the Wireless Telephonewas in a call, the audio will be lost and the call will be dropped.There is no master SVP Server in a UNIVERGE WL System TelephonyGateway environment.NOTEDuring the two seconds while the loss of the SVP Server is being detected,the audio for the call will be lost.