[asterisk-users] Multi-line phones - Asterisk uses wrong callerid

[Drew Gibson]

I have some phones (and an ATA) that are shared between two users who 
each have separate voicemail but they are not behaving as desired nor 
expected.

Incoming calls show up on the correct lines.
Calls originating from the device are seen, at the terminating device, 
as coming from the account listed last in sip.conf, regardless of the 
line selected.

This creates three main issues I would like to resolve:-
1. The person called sees the wrong callerid
2. The CDR records the call against the wrong account
3. Picking up voicemail requires multiple extra steps

Is there a way around this??

Scenario:-
Phone 1 has three lines 101, 102, 103
Phone 2 has 1 line 202

User 1 selects line 101 at Phone 1 and dials 202 (to Phone 2)
User 2 at Phone 2 sees call coming from extension 103 instead of 101

With 'sip debug' enabled at the console, I see an INVITE issued (on the 
Phone 1 to Asterisk leg) from the correct extension, 101, to 202 but the 
call leg from Asterisk to Phone 202 shows an INVITE from 103 to 202.
103 happens to be the last listed in sip.conf and the first listed in 
'sip show peers' (I have confirmed that this is dependent on the order 
in the conf file, not numeric order)

sip.conf :-
[general]
port = 5060
bindaddr = 0.0.0.0
pedantic = no
autocreatepeer = no
context = sip
registertimeout=20
localnet = 10.10.10.0/255.255.255.0
srvlookup = yes
tos=0xb8
rtptimeout=300
rtpholdtimeout=1800
maxexpirey=3600
defaultexpirey=1200

[sip-101]
; Aastra 480i phones for general office
type=peer
insecure=very
disallow=all
allow=ulaw
allow=alaw
host=dynamic
dtmfmode=auto
canreinvite=no
context=office-dial
qualify=yes
username=101
secret=xxxxxx
mailbox=101
callerid="User 1" <101>


sip show peers :-
103/103                    10.10.10.181      D          5060     OK (157 ms)
102/102                    10.10.10.181      D          5060     OK (159 ms)
202/202                    10.10.10.184      D          5060     OK (4 ms)
101/101                    10.10.10.181      D          5060     OK (160 ms)


Asterisk 1.2.15
Phones tested:- Aastra 480i, Grandstream GXP2000, Grandstream HT-386 ATA

-- 
Drew Gibson

Systems Administrator
OANDA Corporation
416-593-6767 x322
www.oanda.com