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9951 phones during srst hold and resume failed for pstn calls

ip phone load:

sip9951.9-2-3-27

vg 2951 ios:

Version 15.1(4)M3

hold and resume for local ip phones to ip phones works fine. but calls to pstn mobile hold and resume not working. anyone has similar problem? any idea whats wrong?

config below:

voice register global

timeouts interdigit 4

max-dn 400

max-pool 250

!

voice register pool  1

id network 10.10.6.0 mask 255.255.255.0

dtmf-relay rtp-nte

codec g711ulaw

!

!

voice service voip

ip address trusted list

  ipv4 x.x.x.1

allow-connections h323 to h323

allow-connections h323 to sip

allow-connections sip to h323

allow-connections sip to sip

no supplementary-service sip refer

redirect ip2ip

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

h323

  call preserve

  session transport udp

sip

  bind control source-interface Loopback0

  bind media source-interface Loopback0

  registrar server expires max 120 min 60

!

interface Loopback244

ip address 10.x.x.1 255.255.255.255

h323-gateway voip bind srcaddr 10.x.x.1

ip phones are not on local lan. they are routed via local ospf network. attached is the phone log.

2 REPLIES

9951 phones during srst hold and resume failed for pstn calls

hi,

add the following...

1. enable

2. configure terminal

3. voice service voip

4. sip

5. session transport tcp

Thanks,

Karthik

New Member

9951 phones during srst hold and resume failed for pstn calls

was using the command before it works for the first hold and resume but if i hold again i will not able to resume the call again.

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