Nobody responded so I’m sending this out again. I need help on stopping the “Change caller ID on forward” trick that either Cisco or Asterisk keeps doing. My upstream provider doesn’t like it.

 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Rodan
Sent: Friday, November 05, 2004 3:41 PM
To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
Subject: [Asterisk-Users] Need a creative solution - Caller ID and a stupidupstream

 

Ok. Our upstream provider, IDS Telecom, will not let us set outbound caller ID to anything we want, like we used to be able to do with Expedius. We have to provide them with a list of any numbers we want to be able to set outbound caller ID to. So we have to give them a list of all our DID’s, from them, from Expedius, from VoicePulse, etc. etc. and it’s quite tedius, but we’ve been ok with it for now.

 

However, we use Cisco 79xx phones. If we use the “CFwdAll” option on the phone, to forward calls, the phone will see the incoming call and redirect it to the call forwarded number, fine no problem. However, the phone (or asterisk) tries to change the outbound caller ID to the callers caller ID, this way the person receiving the call will know who’s calling them. However, IDS will not recognize this number and won’t let us set our caller ID to it so it will use the fall-back caller ID number, which is our company’s main number.

 

Just got a complaint from a customer who’s upset that when he call forwards to his cell phone, whenever a call comes into his cell phone (relayed through their office phone), the caller ID shows our number, and not his office number or the callers number.

 

If they picked up the phone, placed a call to their cell, the right caller Id would be provided, as I have this set as their caller id in sip.conf   but only when the phone tries to do a blind transfer will it attempt to change or alter its normal outbound caller id, which seems to override what’s in asterisk’s sip.conf file.

 

Any ideas? All I’ve got so far is:

 

  1. Call IDS and tell them to make any “unknown” outbound caller id numbers, just out of area. So when a call is forwarded through a Cisco, their cell will say “Out of Area” instead of our main number
  2. Disable the “CFwdAll” option on the Cisco phones (I don’t know how though)
  3. Get Asterisk to ignore the phone changing the caller id information or override it

 

If anybody can help me accomplish option 2 or 3, or has a better solution, it would be much appreciated.

 

Life was easier when we used Expedius, they didn’t care what we set the caller ID to. Too bad they lacked in too many other departments.

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