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Elena Pudge
Beginner

SIP SRST and 9971 phones

Hi,

I'm trying to get sip srst working and must be missing something very simple.

This is the config I've got:

voice service voip

ip address trusted list

  ipv4 85.119.63.4

  ipv4 10.26.120.129

  ipv4 10.26.120.0 255.255.255.0

address-hiding

allow-connections sip to sip

redirect ip2ip

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none

sip     

  bind control source-interface GigabitEthernet0/1

  bind media source-interface GigabitEthernet0/1

  registrar server

  asserted-id pai

  midcall-signaling passthru

  pass-thru content sdp

  sip-profiles 1

!        

voice class codec 711

codec preference 1 g711ulaw

codec preference 2 g711alaw

codec preference 3 g729r8 bytes 30

voice register global

system message *** SRST in Action ***

max-dn 56

max-pool 10

!        

voice register pool  1

id network 10.26.120.0 mask 255.255.255.0

preference 2

proxy 10.26.120.129 preference 1

dtmf-relay rtp-nte

voice-class codec 711

As far as the router is concerned the phones are registering:

Jul 30 12:17:44.459 BST: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:

Received:

REGISTER sip:10.26.120.148 SIP/2.0

Via: SIP/2.0/UDP 10.26.120.151:5060;branch=z9hG4bK43fdeaec

From: <sip:6001@10.26.120.148>;tag=d0c282d0aefe00125e06e369-237448af

To: <sip:6001@10.26.120.148>

Call-ID: d0c282d0-aefe007c-6f1a051f-74c189c4@10.26.120.151

Max-Forwards: 70

Date: Mon, 30 Jul 2012 11:17:28 GMT

CSeq: 105 REGISTER

User-Agent: Cisco-CP9971/9.2.4

Contact: <sip:da7b99eb-78ea-c180-af59-987dd2c5b195@10.26.120.151:5060;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-0000-0000-d0c282d0aefe>";+u.sip!devicename.ccm.cisco.com="SEPD0C282D0AEFE";+u.sip!model.ccm.cisco.com="493";video

Supported: extended-refer,norefersub,X-cisco-srtp-fallback,X-cisco-config,X-cisco-sis-5.2.0,X-cisco-xsi-8.0.1

Content-Length: 0

Reason: SIP;cause=200;text="cisco-alarm:14 Name=SEPD0C282D0AEFE ActiveLoad=sip9971.9-2-4-19.loads InactiveLoad=sip9971.9-2-1.loads Last=cm-closed-tcp"

Expires: 3600

Jul 30 12:17:44.459 BST: //76/F6E40EFF8035/SIP/Msg/ccsipDisplayMsg:

Sent:

SIP/2.0 200 OK

Via: SIP/2.0/UDP 10.26.120.151:5060;branch=z9hG4bK43fdeaec

From: <sip:6001@10.26.120.148>;tag=d0c282d0aefe00125e06e369-237448af

To: <sip:6001@10.26.120.148>;tag=3E5B6C-5D6

Date: Mon, 30 Jul 2012 11:17:44 GMT

Call-ID: d0c282d0-aefe007c-6f1a051f-74c189c4@10.26.120.151

Server: Cisco-SIPGateway/IOS-12.x

CSeq: 105 REGISTER

Supported: X-cisco-srst-sis-1.0.0

Supported: X-cisco-srtp-fallback

Contact: <sip:6001@10.26.120.151:5060>;expires=3600;x-cisco-newreg

Expires:  3600

Content-Length: 0

However, the phones themselves just sit there with the message : Registering and blank screen.

Any ideas?

Thanks

4 REPLIES 4
Leo Salcie Tejeda
Rising star

Did you check if the phone has the SRST reference? At the phone Go to Setting -->Device Configuration --> Unified CM Configuration--> SRST: IP?

Regadrs

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Yep - 2nd server is the SRST gateway

CUCM Server1
10.26.120.129 Active
CUCM Server2
10.26.120.148 Standby
Chris Deren
Hall of Fame Master

Your proxy is the IP address of the CUCM server then, it needs to be the local SRST GW.

Chris

Tried that but still the same result.

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