| Configuring Call Settings | 165Parameter Description Configuration MethodAccount Polling Enable or disable the accountpolling on the system.• Off—the system dials anumber by using the call typewith the highest priority. Ifyou disable this feature, oncethe dialed number differsfrom the call type you areusing, you cannot place thecall.• On—the system tries eachcall type in order to dial anumber.Default: On.Web user interfaceExample1. System A is registered with a Yealink Cloud account and a SIP account.2. Select the call type automatically. Dial the number.• If account polling is disabled, system A can only use its Cloud account (highest priority) to call system B.• If account polling is enabled, system A will use its Cloud account (highest priority) to call system B first. Ifthis call fails, system A continues to use its SIP account (the second highest priority) to call system B.Related tasksPlacing a Call by Entering a NumberConfiguring Additional Audio CallIf you enable this feature, when the number of video calls reaches the limit (except for 24-way video calls) in the call,additional 5 users can still place audio calls to join the call. Otherwise, additional 5 users cannot place audio calls tojoin the call. This feature is only applicable to VP59/VC200/VC500/VC800/VC880.About this taskFor example, for VC800 with 16-way license, if you disable additional audio call, when you create a call, only 16participants can place video calls to join your call, the 17th participant cannot join the call.Procedure1. On your web user interface, go to Setting > Call Features.2. Enable or disable Additional Audio Call.Selecting the Multi-party ResourcesIf you are during a P2P call, you can invite a third party using its own capacity (built-in MCU) or the server VMR toinitiate a conference.About this taskThe systems can select multi-party resources by the following:
