07-13-2012 01:53 PM - edited 03-16-2019 12:11 PM
Hi,
I think we have solved our routing problems with the 881s but, still we are seeing phones hanging off them start registering, seemingly randomly, but one user explained that it seems to happen to him when he opens outlook. Wondering if the application could be taking all the Comcast bandwidth momentarily making the phone re-register. We have configured qos. The same user said that sometimes during the day when he is talking it will start re-registering again. His phone call will not drop though. He said that when his phone is registering during a phone call he won't drop the call but, he loses all his phone functions during the time it is registering. Has anyone else experienced this? Is this normal behavior? Any suggestions on how to remedy?
Thanks, Pat.
07-13-2012 03:02 PM
Phone FW being used ?
07-16-2012 06:14 AM
There is no firewall on the phone or router except for an access-list called fw_acl on the 881 router.
Here is the policy map:
policy-map voice_and_video
class call_setup
bandwidth 32
class internetwork_control
bandwidth 32
class voice
priority 128
class video
priority 460
class class-default
policy-map shaper
class class-default
shape average 2000000
service-policy voice_and_video
policy-map mark_incoming_traffic
class discover_voip
set dscp ef
class discover_signaling
set dscp cs3
class discover_video
set dscp cs2
class non_voip
set dscp default
!
Class Map:
class-map match-any internetwork_control
match access-group name isakmp_acl
match ip precedence 7
match ip precedence 6
class-map match-all non_voip
match access-group name non_voip_traffic_acl
class-map match-any discover_signaling
match protocol skinny
match protocol sip
class-map match-any call_setup
match ip dscp cs3
match ip precedence 3
class-map match-any discover_video
match protocol cuva
match protocol rtp video
class-map match-any discover_voip
match protocol rtp payload-type "0"
match protocol rtp payload-type "18"
match protocol rtp audio
class-map match-any video
match ip precedence 2
match ip dscp cs2
class-map match-any voice
match access-group name voice_acl
match ip dscp ef
match ip precedence 5
!
fw_acl access-list:
Router#
ip access-lists fw_acl
Extended IP access list fw_acl
10 permit icmp any any (36 matches)
20 permit udp any any eq bootpc (8526 matches)
30 permit udp any any eq domain
40 permit udp any any eq isakmp (2034 matches)
50 permit udp any any eq non500-isakmp (78830 matches)
60 permit esp any any (234070 matches)
70 permit udp host 192.43.244.18 any eq ntp (620 matches)
80 permit tcp host 65.199.155.103 any
Interface where fw_acl is applied:
interface FastEthernet4
description To Comcast
ip address dhcp
ip access-group fw_acl in
no ip redirects
Thanks, Pat.
07-16-2012 07:36 AM
I meant, phone firmware ?
For a test you can try removing QoS, that most often is useless or ineffective.
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