[Asterisk-Users] Got SIP response 482 "Loop Detected"

[tony banks]

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Hello

Today I observed this strange problem, as soon as I  called from my SNOM IP phone (910) to CISCO IP Phone 7905G (810), I got following warning messages and call didn't connect. But after couple of minutes this problem was gone, without me doing anything..Has anyone observed this thing before...

 Called 810
    -- SIP/810-b6dc is ringing
    -- SIP/810-b6dc answered SIP/910-6c4e
    -- Attempting native bridge of SIP/910-6c4e and SIP/810-b6dc
WARNING[1227879616]: File rtp.c, Line 1202 (ast_rtp_bridge): codec0 = 524302 is
not codec1 = 524302, can't do reinvite
    -- Got SIP response 482 "Loop Detected" back from 129.82.44.226
WARNING[1142106560]: File chan_sip.c, Line 462 (retrans_pkt): Maximum retries exceeded on call 3c2706bad222-n2s56u19hj1l at 129-82-44-226 for seqno 1 (Response)
WARNING[1142106560]: File chan_sip.c, Line 462 (retrans_pkt): Maximum retries exceeded on call 3c2706bad222-n2s56u19hj1l at 129-82-44-226 for seqno 2 (Response)
WARNING[1142106560]: File chan_sip.c, Line 2329 (__transmit_response): Unable to determine sequence number from ''

Thanks
Tony