Call Routing Issue with Cisco Unified CM

nissarbmnissarbm Member Posts: 1 ■□□□□□□□□□
Hi All,

I am installed Cisco Unified CM 6.0.1 and configured two third party SIP phone's (say 1001 and 1002). Both the phones got registered to the Cisco Call Manager.

But I could not establish call between these two phones. When I am trying to make the call, Cisco Call Manager is giving the "404: Not Found". The reason phrase within the packet has the following codes.

Reason: Q.850;cause=1
Reason Protocols: Q.850
Cause: 1(0x1)[Unallocated (unassigned) number]

Any body have any idea on this issue? Is I missed out any Cisco CM configurarion?
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