(HOWTO) strip + from DID and CID for bandwidth.com, also set DID as if doing RDNIS

---> a)

goto config edit -> extensions_custom.conf
add at the end then "update" then "reload configs"

[custom-frombandwidth]
exten => _+1.,1,NOOP(=CUSTOM-FROM-BANDWIDTH===========)
exten => _+1.,n,Set(pseudodid=${SIP_HEADER(To)})
exten => _+1.,n,Set(pseudodid=${CUT(pseudodid,@,1)})
exten => _+1.,n,Set(pseudodid=${CUT(pseudodid,:,2)})
exten => _+1.,n,Set(DID=${pseudodid:-10})
exten => _+1.,n,NoOp({pseudodid} = ${pseudodid})
exten => _+1.,n,NoOp({DNID} = ${CALLERID(DNID)})
exten => _+1.,n,NoOp({RDNIS} = ${CALLERID(RDNIS)})
exten => _+1.,n,NoOp({EXTEN} = ${EXTEN})
exten => _+1.,n,NoOp({CALLERID} = ${CALLERID(num)})
exten => _+1.,n,NoOp({CHANNEL} = ${CHANNEL})
extrn => _+1.,n,NoOp({CONTEXT} = ${CONTEXT})
exten => _+1.,n,NOOP(=================================)
exten => _+1.,n,Set(CALLERID(num)=${CALLERID(num):-10})
exten => _+1.,n,Set(CALLERID(ANI)=${CALLERID(num)})
exten => _+1.,n,Goto(from-trunk,${DID},1)

exten => _+.,1,NOOP(=CUSTOM-FROM-BANDWIDTH=INTERNATIONAL==)
exten => _+1.,n,Set(pseudodid=${SIP_HEADER(To)})
exten => _+1.,n,Set(pseudodid=${CUT(pseudodid,@,1)})
exten => _+1.,n,Set(pseudodid=${CUT(pseudodid,:,2)})
exten => _+1.,n,Set(DID=${pseudodid:-10})
exten => _+.,n,Set(CALLERID(num)=${CALLERID(num):1})
exten => _+.,n,Set(CALLERID(ANI)=${CALLERID(num)})
exten => _+.,n,NoOp({DNID} = ${CALLERID(DNID)})
exten => _+.,n,NoOp({RDNIS} = ${CALLERID(RDNIS)})
exten => _+.,n,Goto(from-trunk,${DID},1)

---> b)

BOTH of your bandwidth trunks, BW1, and BW2 (primary and secondary), should read like the following, adjusting of course for any particulars for your service setup.

Trunk Name: BW1

Peer Details:
   type=peer
   qualify=yes
   port=5060
   nat=yes
   host=216.82.224.202
   dtmfmode=rfc2833
   disallow=all
   canreinvite=no
   allow=ulaw&alaw

USER Context: FBW1
   type=peer
   qualify=yes
   port=5060
   nat=yes
   insecure=very
   host=216.82.224.202
   fromdomain=216.82.224.202
   dtmfmode=rfc2833
   disallow=all
   context=custom-frombandwidth
   canreinvite=no
   allow=ulaw

The key factor is the "context=custom-frombandwidth" component in the USER Context, this causes inbound calls from bandwidth to go through the frombandwidth custom context allowing use to "massage" the data a little before processing it as if it were a directly dialed setup by going back into the from-trunk context.

Make sure you have inbound routes setup to handle 10-digit sized inbound DID's!!!