It represents the interface type assigned to a channel. The following different types of interfaces are possbile: Number InterfaceType A B C D CondName 1 {User Config, U, U, N, N, a}, 2 {Unconfig, U, U, N, N, a}, 3 {No Sig, U, U, U, U, a}, 4 {Force Sig, U, U, N, N, a}, 5 {2W E&M, 0, X, N, N, a}, 6 {4W E&M, 0, X, N, N, a}, 7 {FXO, 1, 1, N, N, b}, 8 {FXS G/S, 0, 1, N, N, c}, 9 {FXS L/S, 0, X, N, N, d}, 10 {DPO, 0, X, N, N, a}, 11 {DPT, 0, X, N, N, a}, 12 {RPO, 0, X, N, N, a}, 13 {RPT, 0, X, N, N, a}, 14 {SDPO, 0, X, N, N, a}, 15 {DX, 0, X, N, N, a}, 16 {ETO, U, U, N, N, e}, 17 {PLAR, U, U, N, N, d}, 18 {PLR, 0, X, N, N, a}, 19 {RD, U, U, N, N, a}, 20 {R1 (SOCOTEL), 0, N, N, N, e}, 21 {SSDC5A, 1, 1, 0, 1, f}, 22 {R2 (backward), 1, 1, N, N, e}, 23 {R2 (forward), 1, 0, N, N, d} Where A B C D are the signalling bits corresponding to Onhook values having the following meanings: 0 meaning 0 1 meaning 1 X meaning donot Care U meaning unknown N meaning not used and the Conditioning templates can be any of a b c d e f types. If the IPX receives A B C D bits corresponding to the on-hook values, that channel is known to be on-hook. Otherwise that channel is known to be offhook. Each interface except for UserConfigured type has a pre-determined conditioning template associated with it which are of 5 different types apart from user configurable conditioning templates. Examples of valid values are any of the above interface number given above. If it is a userConfigured OR Forced Signalling (FCDSIG = 4) interface type then the following variables need to be supplied: voiceChannelIfOnhkABit voiceChannelIfOnhkBBit voiceChannelIfOnhkCBit voiceChannelIfOnhkDBit voiceChannelIfCondName. If any of the above variables are not provided with values then, the current values in the data base is retained.In all other cases the values are as shown in the table above. The interface type is ignored for 'D' type connections. The default values for a channel: InterfaceType A B C D CondName UnConfigured U U N N a. If a pre-defined Interface type is chosen in a SET, values for the other related objects should not be provided.