sh isdn status

Selamlar...
BRI uzerinden PBX baglantili bir lokasyonda VoIP calistirmak istiyoruz..PBX ve router fiziksel baglantisi OK. Ancak sh isdn status ciktisindan asagidaki gibi birden fazla TEI satiri goruyorum...Bunun sebebi hakkinda bilgisi olan varsa paylasabilir mi?
(BRI port configlerini de asagiya ekledim..)
Tesekkurler, iyi calismalar...


Router#sh isdn status 
Global ISDN Switchtype = basic-net3
ISDN BRI2/0 interface
        dsl 1, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
        TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Active dsl 1 CCBs = 0
    The Free Channel Mask:  0x80000003
ISDN BRI2/1 interface
        dsl 2, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
        TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Active dsl 2 CCBs = 0
    The Free Channel Mask:  0x80000003
    Total Allocated ISDN CCBs = 0



!
interface BRI2/0
 no ip address
 isdn switch-type basic-net3
 isdn overlap-receiving
 isdn incoming-voice voice
 isdn static-tei 0
!
interface BRI2/1
 no ip address
 isdn switch-type basic-net3
 isdn overlap-receiving
 isdn incoming-voice voice
 isdn static-tei 0
end



      

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