Users call another office and hear their own voicemail prompt when calling out and back in on SIP

[jdennis76]

I have discovered a weird problem with a multi site location that all share a common voicemail pro.

IPO Server Edition 10.0.4.5
appx 400 IP phones at 20 locations
Centralized Voicemail Pro
SIP trunking


If Ext1000 at site A, dials the 7 digit DID for Ext2000 at site B, the calls goes out a SIP trunk and back in on the same SIP trunk. If the Person at site B Ext2000 does not answer their phone, it forwards to voicemail and the caller at Site A hears "Extn1000, please enter your password".

Obviously Extn1000 should just dial the 4 digit extn and avoid going out the sip trunk but in a network this big, users may not be aware who is on the system and who isn't.

Someone suggested this may be caused by a SIP refer message. Have any of you ever seen this? Any thoughts? I think I've seen this before on smaller systems while making test calls out of the system and back in so it might be something the SIP vendor and I are configuring incorrectly.

Thanks,
Jason

 

[tlpeter]

It is up to you to route the calls internally on this case. If they dial numbers within there own trunk then route it over the scn.
And yes I have seen that sort of strange stuff.

BAZINGA!

I'm not insane, my mother had me tested!

 

[joe2938]

why would you even route a call out and back in, as stated it should go across the SCN dialing just the extension number

 

[derfloh]

I agree Joe, but nevertheless the caller should not get his own VM prompts in that case.

 

[joe2938]

I understand that, maybe a reboot may be in order

 

[IPGuru]

Obviously Extn1000 should just dial the 4 digit extn and avoid going out the sip trunk but in a network this big, users may not be aware who is on the system and who isn't.

why not put in a short code for the 7digit DDI that translates it back to the internal extn number,
the cust may even thank you for this when they see that they are no-longer paying for calls to themselves


Do things on the cheap & it will cost you dear