Active SIP Sessions

I am running AAH 2.2 and have been seeing some behavior that strikes me as being unexpected … but I can’t tell if it is actually wrong. Note that I can make and receive calls … so nothing is actually “broken” although I do see to get a few call failures that I could attribute to this…

I use Broadvoice as my VoIP provider. Whenever I look at the Asterisk information in AMP I ALWAYS see at least one SIP channel Active (no calls are currently happening) and periodically see a second one come and go.

Active Channel(s)
Peer User/ANR Call ID Seq (Tx/Rx) Form Hold Last Message
147.135.20.128 5083021951 48c2a1f426a 01441/00000 unkn No
1 active SIP channel
Verbosity is at least 3

I don’t know if it is related, but I also see the following in my log:

Mar 12 19:41:14 DEBUG[2633] chan_sip.c: Registration successful
Mar 12 19:41:14 DEBUG[2633] chan_sip.c: Cancelling timeout 7100
Mar 12 19:41:22 DEBUG[2633] chan_sip.c: Auto destroying call '48c2a1f426a6c36c2e9197334fe5c3c9@127.0.0.1’
Mar 12 19:41:38 DEBUG[2633] chan_sip.c: Scheduled a registration timeout for sip.broadvoice.com id #7107
Mar 12 19:41:38 DEBUG[2633] chan_sip.c: Stopping retransmission on ‘48c2a1f426a6c36c2e9197334fe5c3c9@127.0.0.1’ of Request 1444: Match Found
Mar 12 19:41:38 DEBUG[2633] chan_sip.c: Registration successful

This is repeated over and over … note that the call being autodestroyed is the same one that is shown as Active.

My SIP.CONF looks like this:

[general]

port = 5060 ; Port to bind to (SIP is 5060)
bindaddr = 0.0.0.0 ; Address to bind to (all addresses on machine)
disallow=all
allow=ulaw
allow=alaw
context = from-sip-external
callerid = Unknown
pedantic=no
;#include sip_nat.conf
;#include sip_custom.conf
#include sip_additional.conf

[BV]
username=5083021951
type=friend
secret=xxxxxxxxxx
nat=yes
qualify=yes
insecure=very
host=sip.broadvoice.com
fromuser=5083021951
fromdomain=sip.broadvoice.com
dtmfmode=inband
context=from-BV
canreinvite=no
authname=5083021951
disallow=all
allow=ulaw

So … can anybody give me any insight into what is happening here?

Thanks in advance.
/lss