Configuration as follows; BCM50R3 with SIP Trunks and PSTN access + BCM450 R1 with only SIP Trunks. 4-digit Extn calls between BCM50/BCM450 via SIP working fine.Tandem calls from BCM450 to PSTN via BCM50, dropping 1-digit. National PSTN access from BCM50 set is 9,abcdefg with absorb length=1 so...
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