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decoding the error message TEI_ASSIGNED

I support a remote center that has phone over a PRI line. At the moment, no calls can go in or out. When I look at the router, Cisco 2901, there are no recent errors on the line, but the output for the "show isdn status", this is the output:

 dsl 0, interface ISDN Switchtype = primary-ni
        L2 Protocol = Q.921 0x0000  L3 Protocol(s) = CCM MANAGER 0x0003
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask:  0x807FFFFF
    Number of L2 Discards = 0, L2 Session ID = 4
    Total Allocated ISDN CCBs = 0

what does "State = TEI_ASSIGNED" mean? How do I resolve this?
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Keith Smith, MBA
Asked:
Keith Smith, MBA
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2 Solutions
 
gheistCommented:
can you trace ISDN? TEI_ASSIGNED state means cannot connect other end
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Keith Smith, MBANetwork Engineer forever growingAuthor Commented:
Gheist,

Just found out today that rebooting the router resolved the issue. I do not think this is the total resolve, but a cough drop for the real problem.  I think there is something more to this and this will happen again. Next time I will be better prepared with this bit of knowledge. Thanks for your response.

Keith
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gheistCommented:
Probably provider updated their end and it had to go down and up to restart....
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Keith Smith, MBANetwork Engineer forever growingAuthor Commented:
never thought of that ... will make a note of that if it happens again. Thanks.
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gheistCommented:
Collect good syslog, thats nice to send to technical help desk (dont burden callcenter with your problems (tm) )
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Keith Smith, MBANetwork Engineer forever growingAuthor Commented:
always remember that point ... you only fail that point once
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gheistCommented:
If yhe help request looks complex enough syslog will look complex enough to get free escalation to right team that can read it...
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Keith Smith, MBANetwork Engineer forever growingAuthor Commented:
information provided help clear up confusion on the message that help resolve problem.
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