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Cannot make 2 outbound calls at the same time

Hi everybody,

There's a customer that has a cisco 2921 router (Version 15.2(2)T //// "flash:c2900-universalk9-mz.SPA.152-2.T.bin").

It has two FXO ports with phone lines: 1348 and 1074.

1/0/12          --  fxo-ls      up    dorm  idle     on-hook  y
1/0/13          --  fxo-ls      up    dorm  idle     on-hook  y

The issue is that when they make an outbound call with one line, you can't make at the same time another call with the other line.

Could anybody help me with this? What's wrong? What should be changed on the configuration if it's needed?

Regards.

Patricio

5 REPLIES 5
Beginner

Cannot make 2 outbound calls at the same time

It's possible your outbound dial peer(s) are pointing to only one outbound voice port instead of a trunk group.  Can you post a show run.  Are they using CME or call manager?

Cannot make 2 outbound calls at the same time

I believe they use Call Manager.

Here's part of the show run:

voice-port 1/0/0

cptone AR

timeouts interdigit 2

connection plar 2355

station-id name Pater_PHONE

caller-id enable

!

voice-port 1/0/1

cptone AR

timeouts interdigit 4

timeouts ringing infinity

timing hookflash-in 900 400

station-id name Suc_8_Fax

caller-id enable

!

voice-port 1/0/2

cptone AR

timeouts interdigit 4

timeouts ringing infinity

timing hookflash-in 900 400

station-id name Suc_8_Cast

caller-id enable

!

voice-port 1/0/3

cptone AR

timeouts interdigit 4

timeouts ringing infinity

timing hookflash-in 900 400

station-id name Suc_8_ATM

caller-id enable

!        

voice-port 1/0/4

cptone AR

timeouts interdigit 4

timeouts ringing infinity

timing hookflash-in 900 400

station-id name Suc_8_Denver

caller-id enable

!

voice-port 1/0/5

cptone AR

timeouts interdigit 4

timeouts ringing infinity

timing hookflash-in 900 400

station-id name Suc_8_Denver

caller-id enable

!

voice-port 1/0/6

cptone AR

timeouts interdigit 4

timeouts ringing infinity

timing hookflash-in 900 400

station-id name Suc_8_Denver

caller-id enable

!

voice-port 1/0/7

cptone AR

timeouts interdigit 4

timeouts ringing infinity

timing hookflash-in 900 400

station-id name Suc_8_Denver

caller-id enable

!

voice-port 1/0/8

trunk-group PSTN

supervisory disconnect dualtone mid-call

supervisory custom-cptone country-ar

cptone AR

timeouts interdigit 4

timeouts call-disconnect 2

shutdown

impedance complex2

description ## LIBRE ##

!        

voice-port 1/0/9

trunk-group PSTN

supervisory disconnect dualtone mid-call

supervisory custom-cptone country-ar

cptone AR

timeouts interdigit 4

timeouts call-disconnect 2

shutdown

impedance complex2

description ## LIBRE #

!

voice-port 1/0/10

trunk-group PSTN

supervisory disconnect dualtone mid-call

supervisory custom-cptone country-ar

cptone AR

timeouts interdigit 4

timeouts call-disconnect 2

shutdown

impedance complex2

description ## LIBRE ##

!

voice-port 1/0/11

trunk-group PSTN

supervisory disconnect dualtone mid-call

supervisory custom-cptone country-ar

cptone AR

timeouts interdigit 4

timeouts call-disconnect 2

shutdown

impedance complex2

description ## LINEA3 ##

!

voice-port 1/0/12

trunk-group PSTN

supervisory disconnect dualtone mid-call

supervisory custom-cptone country-ar

cptone AR

timeouts interdigit 4

timeouts call-disconnect 2

impedance complex2

description ## 1348 ##

!        

voice-port 1/0/13

trunk-group PSTN

supervisory disconnect dualtone mid-call

supervisory custom-cptone country-ar

cptone AR

timeouts interdigit 4

timeouts call-disconnect 2

impedance complex2

description ## 1074 ##

!

!

!

!

ccm-manager fallback-mgcp

ccm-manager mgcp

ccm-manager music-on-hold

ccm-manager sccp local Loopback2

!

no mgcp package-capability res-package

no mgcp package-capability fxr-package

no mgcp timer receive-rtcp

!

mgcp profile default

!

sccp local Loopback2

sccp ccm 172.25.29.179 identifier 2 version 7.0

sccp ccm 172.31.26.37 identifier 1 version 7.0

sccp

!

sccp ccm group 1

associate ccm 1 priority 1

associate ccm 2 priority 2

associate profile 1 register XCODE_Suc8

associate profile 3 register MTP_Suc8

associate profile 2 register CFB_Suc8

switchback method graceful

!

dspfarm profile 1 transcode 

codec pass-through

codec g729r8

codec g729abr8

codec g729ar8

codec g711alaw

codec g711ulaw

maximum sessions 5

associate application SCCP

!

dspfarm profile 2 conference 

codec g729br8

codec g729r8

codec g729abr8

codec g729ar8

codec g711alaw

codec g711ulaw

maximum sessions 1

associate application SCCP

!

dspfarm profile 3 mtp 

codec pass-through

codec g711ulaw

maximum sessions software 100

associate application SCCP

!

dial-peer cor custom

name PT_Emergencia

name PT_Servicios

name PT_0800

name PT_Locales

name PT_Celulares

name PT_DDN

name PT_DDI

!

!

dial-peer cor list dial-peer

!

dial-peer cor list CSS-Emergencias

member PT_Emergencia

member PT_Servicios

member PT_0800

!

dial-peer cor list CSS-Locales

member PT_Emergencia

member PT_Servicios

member PT_0800

member PT_Locales

!        

dial-peer cor list CSS-Celulares

member PT_Emergencia

member PT_Servicios

member PT_0800

member PT_Locales

member PT_Celulares

!

dial-peer cor list CSS-DDN

member PT_Emergencia

member PT_Servicios

member PT_0800

member PT_Locales

member PT_Celulares

member PT_DDN

!

dial-peer cor list CSS-Loc-DDN

member PT_Emergencia

member PT_Servicios

member PT_0800

member PT_Locales

member PT_DDN

!

dial-peer cor list CSS

!

dial-peer cor list CSS-DDI

member PT_Emergencia

member PT_Servicios

member PT_0800

member PT_Locales

member PT_Celulares

member PT_DDN

member PT_DDI

!

!

dial-peer voice 1 voip

description ## Ruta internos 4 digitos - CUCM Activo ##

preference 1

destination-pattern [*1-9]...

session target ipv4:172.31.26.37

voice-class codec 1 

voice-class h323 1

dtmf-relay h245-signal h245-alphanumeric

fax-relay ecm disable

fax rate 7200

no vad

!

dial-peer voice 2 voip

description ## Ruta internos 4 digitos - CUCM Backup ##

preference 2

shutdown

destination-pattern [*1-9]...

session target ipv4:172.31.86.14

voice-class codec 1 

voice-class h323 1

dtmf-relay h245-signal h245-alphanumeric

fax-relay ecm disable

fax rate 7200

no vad

!

dial-peer voice 100 voip

description ## Ruta Preatendedor WAN ##

service macro

incoming called-number *100

codec g711ulaw

!

dial-peer voice 101 pots

trunkgroup PSTN

corlist outgoing CSS-Locales

description Locales

destination-pattern 0[3-7].....

!

dial-peer voice 102 pots

trunkgroup PSTN

corlist outgoing CSS-Celulares

description Celulares 8 Digitos

destination-pattern 015......

prefix 15

!

dial-peer voice 103 pots

trunkgroup PSTN

corlist outgoing CSS-DDN

description Larga Distancia Nacional

destination-pattern 00[1-3].........

forward-digits 11

!

dial-peer voice 104 pots

trunkgroup PSTN

corlist outgoing CSS-DDI

description DDI

destination-pattern 00T

prefix 00

!

dial-peer voice 105 pots

trunkgroup PSTN

corlist outgoing CSS-Locales

description 0800

destination-pattern 008T

prefix 08

!

dial-peer voice 106 pots

trunkgroup PSTN

corlist outgoing CSS-Emergencias

description Servicios

destination-pattern 01[^5].

forward-digits 3

!

dial-peer voice 107 pots

trunkgroup PSTN

corlist outgoing CSS-Emergencias

description Servicios

destination-pattern 1[^5].

forward-digits 3

!

dial-peer voice 108 pots

trunkgroup PSTN

corlist outgoing CSS-Emergencias

description 911

destination-pattern 0911

forward-digits 3

!

dial-peer voice 109 pots

trunkgroup PSTN

corlist outgoing CSS-Emergencias

description 911

destination-pattern 911

forward-digits 3

!

dial-peer voice 110 pots

trunkgroup PSTN

description Larga Distancia Nacional Celulares

destination-pattern 00[1-3].15........

forward-digits 13

!

dial-peer voice 111 pots

trunkgroup PSTN

description Celulares 6 digitos

destination-pattern 00[1-3]...15......

forward-digits 13

!

dial-peer voice 112 pots

trunkgroup PSTN

description Celulares 7 digitos

destination-pattern 00[1-3]..15.......

forward-digits 13

!

dial-peer voice 200 pots

destination-pattern 18799999

port 1/0/0

!

dial-peer voice 201 pots

service stcapp

port 1/0/1

!

dial-peer voice 202 pots

service stcapp

port 1/0/2

!

dial-peer voice 203 pots

service stcapp

port 1/0/3

!

dial-peer voice 204 pots

service stcapp

port 1/0/4

!

dial-peer voice 205 pots

service stcapp

port 1/0/5

!

dial-peer voice 206 pots

service stcapp

port 1/0/6

!

dial-peer voice 207 pots

service stcapp

port 1/0/7

!

dial-peer voice 208 pots

service macro

shutdown

incoming called-number .

port 1/0/8

!

dial-peer voice 209 pots

service macro

shutdown

incoming called-number .

port 1/0/9

!

dial-peer voice 210 pots

service macro

shutdown

incoming called-number .

port 1/0/10

!

dial-peer voice 211 pots

service macro

incoming called-number .

port 1/0/11

!

dial-peer voice 212 pots

service macro

incoming called-number .

port 1/0/12

!

dial-peer voice 213 pots

service macro

incoming called-number .

port 1/0/13

!

dial-peer voice 23551 voip

description ## Ruta HotLine - CUCM Activo ##

preference 1

destination-pattern 2355

session target ipv4:172.31.26.37

voice-class codec 1 

voice-class h323 1

dtmf-relay h245-signal h245-alphanumeric

fax-relay ecm disable

fax rate 7200

no vad

!

dial-peer voice 23552 pots

trunkgroup PSTN

description ## Pater Phone en modo SRST ##

translation-profile outgoing HOTLINE

preference 5

destination-pattern 2355

!

!

!

!

gatekeeper

shutdown

!

!

call-manager-fallback

secondary-dialtone 0

max-conferences 3 gain -6

transfer-system full-consult

ip source-address 172.25.29.179 port 2000

max-ephones 100

max-dn 96 dual-line

Hall of Fame Master

Cannot make 2 outbound calls at the same time

Only 2 of your POTS lines are not in shutdown mode, can you test them individually to see if they both work?

You can build a more explicit dial-peer pointing to each voice-port individually rather than the trunkgroup and see if call goes out both times.

HTH,

Chris

Beginner

Cannot make 2 outbound calls at the same time

I'd try removing the trunk group PSTN from the shutdown interfaces.  I've run into issues with a trunk group applied to FXO interfaces that are shutdown in certain IOS trains. 

Its also possible there is a physical issue with one of the pots lines.  You can try pointing one of the PSTN dial peers to each FXO port and testing them seperately to make sure they are both operational. 

dial-peer voice 110 pots

port 1/0/12

description Larga Distancia Nacional Celulares

destination-pattern 00[1-3].15........

forward-digits 13

make a test long distance call

then change the dial peer to

dial-peer voice 110 pots

port 1/0/13

description Larga Distancia Nacional Celulares

destination-pattern 00[1-3].15........

forward-digits 13

and make a test LD call

Cannot make 2 outbound calls at the same time

Thanks Chris and Eric for your help!

I'm seeing the customer tomorrow. I'll try with the information that you have given me. I'll tell you how it went.

Thanks again!

Patricio

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