[asterisk-users] Voicemail Caller ID

[admin at thelastestate.com]

Hello,

I'm having an issue with caller ID in voicemail that I'd appreciate  
any input on.

I have two sip peers defined as extension 100 and 101 each with  
separate voicemail accounts.  Each sip peer has its own DID number,  
which is established via cid_number = 6021231234.

When a call is placed from SIP peer #100 to SIP peer #101, and SIP  
peer #101 wants to reply to #100's voicemail via the option #3  
advanced options menu, * responds with an error that #100 does not  
have a voicemailbox.  Of course * thinks the voicemailbox = the caller  
ID/DID of #100, which in this case would be 6021231234 rather than  
100, which is the defined voicemailbox for 100.

My question is, do I need to rewrite callerid for internal  
extension-to-extension calls or is there something simple I'm missing?

Thank you for any advice you can provide.